Each Trial is a strategy a real species uses, turned into something you can run yourself in about ten minutes. Each card says what to do and why it helps.
What each Trial asks you to do, and what it does for you. Reading a Trial needs no account. 3,017 Trials across 2,325 species. Showing 1,261–1,320.
The Trial
Pick one situation you have been letting get close before you respond. Widen the margin today, act on it well before it is urgent, and refuse the chance to wait and see.
Why it helps
Letting things get close before you respond works until the one time it does not, and that one costs everything the waiting saved. Acting while it is distant is cheaper every single time.
1 minDifficulty 4
The Trial
Pick the one person you should be in constant low-level contact with and send something with no news in it at all: a photo of nothing, a word, a noise. Show it sent and show their reply. No occasion, no reason.
Why it helps
Waiting until you have something to report is how close relationships quietly go quiet. Contact with nothing in it is what actually maintains the connection, and it takes five seconds.
2 minDifficulty 2
The Trial
Find one older method of yours you have been meaning to modernise. Use it today exactly as it is for a real task, and state afterwards what the modern version would actually have improved.
Why it helps
Replacing a method that still works costs you the learning time and usually buys nothing you can name. Using it once and stating the real gain tells you whether the upgrade was ever for you.
2 minDifficulty 1
The Trial
Take something irreplaceable that exists in exactly one place, the photos, the file, the key, the record, and put a second copy somewhere physically or organisationally separate today.
Why it helps
One copy in one place is fine until the day it is not, and that day costs you everything at once. A verified second copy somewhere separate takes ten minutes and removes the whole category of loss.
2 minDifficulty 1
The Trial
Take something risky you currently keep assembled and ready, and separate it into two harmless halves stored apart, then show it being combined only at the moment of use. Show the loaded version, the separation, and the combine-on-demand.
Why it helps
Keeping something risky assembled and ready is what makes the accident possible. Splitting it into two harmless halves costs you a few seconds at the point of use and removes the hazard the rest of the time.
2 minDifficulty 1
The Trial
Name the route you would take if something went wrong, the person you would call or the fallback you would use. Clear and test that route today so it actually works, and use it once for something small.
Why it helps
An escape route you have never used is usually blocked by the time you need it, and you find that out at the worst moment. Using it once for something small keeps it open for nothing.
2 minDifficulty 2
The Trial
Find one thing you need regularly that currently lives far from where you actually use it. Move it today so it sits immediately beside the place you rest or work, and use it once from there.
Why it helps
Anything stored far from where you use it gets used less and less until you forget you own it. Putting it within reach of where you already sit is the cheapest way to make it count.
2 minDifficulty 1
The Trial
Find one thing you are about to cut for being unused, a skill, a contact or a spare capacity. Keep it today and do one small thing to maintain it instead of pruning it.
Why it helps
Pruning everything you are not using right now makes you efficient and leaves you with nothing to draw on when conditions change. Maintaining one unused thing is cheap insurance you cannot buy later.
2 minDifficulty 2
The Trial
Spend ten minutes today doing ordinary tasks with your non-dominant hand only: eating, writing, opening things. Keep the dominant hand out of use entirely, even when it would be faster.
Why it helps
Relying entirely on your strong side means an injury or a change in circumstances takes everything at once. Ten minutes on the weak side keeps a second option real for you.
2 minDifficulty 2
The Trial
Take one dangerous thing's useful component today without neutralising it, and store it concentrated for your own use.
Why it helps
Neutralising the dangerous part of something means throwing away the only part with any power. Taking it through intact makes it yours.
2 minDifficulty 1
The Trial
Identify the thing that normally closes an opportunity you depend on, attention, access, a conversation, and take one specific action today that keeps it open.
Why it helps
Opportunities you rely on close quietly and you only notice once they have. Naming what closes them means you can keep yours open on purpose.
2 minDifficulty 1
The Trial
Prepare a simple safe snack or drink with two ingredients kept in separate containers until every other preparation step is complete.
Why it helps
You turn a boiling-spray boundary into one concrete, visible experience instead of an abstract idea.
10 minDifficulty 1
The Trial
Keep up frequent low-effort contact with a group today instead of relying on being in the same place, sending a short update even when there is nothing to report.
Why it helps
Only getting in touch when there is something to say means long silences in which people drift and decisions get made without you. Frequent short contact costs seconds.
2 minDifficulty 2
The Trial
Balance a light object on your head and complete sixty seconds of an active task — tidying, sorting, stepping — without it moving or falling. The head stays level while everything else works.
Why it helps
Sixty seconds that make you acutely aware of how much your head bobs during ordinary work.
2 minDifficulty 3
The Trial
Identify which of your escape options is single use today, say so out loud, and decide in advance what would justify spending it.
Why it helps
Treating a single-use escape as if it regrows means you spend it on something minor. Naming it in advance is what keeps it for when you need it.
2 minDifficulty 2
The Trial
Keep or restore one sensing method your category has abandoned today, because it suits where you actually operate, and use it.
Why it helps
Abandoning a sensing method because your field did means working blind where it would have helped. Keeping it is cheap and nobody else has it.
2 minDifficulty 1
The Trial
Build one freestanding tower from light household objects, identify its weakest point, then destroy it with one kick. No second strike.
Why it helps
Practises structural reasoning followed by decisive force and produces an unusually satisfying proof moment.
15 minDifficulty 4
The Trial
Establish today which of your capabilities is your actual defence rather than the most intimidating one, and rely on that.
Why it helps
Relying on your most intimidating capability means discovering under pressure that it was not the one working. Establishing the real one is one check.
2 minDifficulty 1
The Trial
Repurpose one thing you already run into a different function for a defined period today, rather than acquiring anything new.
Why it helps
Acquiring a new capability for one season costs you more than the season returns. Repurposing something you already run is free and reverses afterwards.
2 minDifficulty 2
The Trial
Identify the one hidden constraint that actually explains most of your visible choices today, and state it plainly.
Why it helps
Your visible choices look like preferences until you find the constraint underneath them. Naming it tells you which of them you can actually change.
2 minDifficulty 1
The Trial
Find one thing of yours that is noticed because of the gap between it and its surroundings. Close that gap today so it sits flush, and change nothing about the thing itself.
Why it helps
What draws attention to something of yours is usually the gap around it, not the thing, so you keep altering the wrong part. Closing the gap leaves it intact and stops it being noticed.
2 minDifficulty 2
The Trial
Choose a safer but more distant option today, and confirm with your partner that both of you will cover the distance before committing.
Why it helps
A safer distant option fails the moment one of you cannot cover the distance. Confirming both of you first is what makes it safer rather than worse.
2 minDifficulty 2
The Trial
Take one surface you believe is solid - a wall, a table, a door, a floor. Knock along it in a grid at hand-width spacing, listening for where the sound goes hollow, and mark every hollow spot with tape. Only when the whole surface is mapped may you open or investigate one of the marks.
Why it helps
Cutting into something before you have found where it is hollow is why you make a mess and still miss. Mapping first costs ten minutes and tells you the one place worth opening.
2 minDifficulty 2
The Trial
Pick the one area you have been thinking about leaving or supplementing. Spend today learning something about it you do not currently know, write down three things you found, and look at nothing outside it.
Why it helps
Keeping your options open elsewhere means you never learn the one place you are actually in well enough for it to carry you. Three things you did not know about it is usually where the next advantage is.
2 minDifficulty 1
The Trial
Before the next exposed thing you do, work out concretely what your exit is and how long it takes: the fallback, the person who would cover, the time to undo it. Say the actual number, then proceed.
Why it helps
Avoiding exposure entirely costs you everything that only happens out there. Knowing exactly how far the exit is makes the same risk feel survivable, and you go.
1 minDifficulty 4
The Trial
Become identifiable today through one channel only, and remain deliberately unremarkable in all the others.
Why it helps
Trying to be identifiable in every channel means being mediocre in all of them. One channel carrying all of it makes you unmistakable there.
2 minDifficulty 2
The Trial
Next time a problem needs several people, label it once clearly so nobody has to re-diagnose: name it, tag it, put the identifier on it. Then let others act on the label rather than explaining to each.
Why it helps
Explaining the same problem to five people separately costs you the whole morning and they still diverge. Labelling it once on the thing itself means everyone acts on the same version.
1 minDifficulty 4
The Trial
Pick one thing of yours that people keep borrowing, moving or using without asking: a charger, a shelf, a food box, a desk. Make a clear label stating the limit in a few words, for example 'Ask first' or 'Not for sharing'. Stick it where anyone reaching for it will see it.
Why it helps
Defending the same limit again and again is tiring and makes you look touchy. Stating it once, clearly and in advance, protects your things quietly and saves you the argument.
2 minDifficulty 1
The Trial
Set one filter's threshold today and then stop assessing items individually, keeping whatever the threshold retains.
Why it helps
Assessing every item means processing a fraction of what passes you. Setting the gap once and keeping what it holds gets you the whole volume.
2 minDifficulty 2
The Trial
Identify the single obligation to where you came from that genuinely still binds you, and honour it today, while deliberately letting go of one other you have been carrying out of habit.
Why it helps
Carrying every obligation from where you came from is exhausting and most of them nobody is checking. Honouring the one that genuinely binds and releasing another makes the rest easier to see.
2 minDifficulty 1
The Trial
On a non-slip mat or carpet, tape a square about 40 cm wide and mark a starting line you choose between half a metre and one metre from its near edge. Barefoot or in non-slip shoes, take one practice leap, then from a low crouch leap forward and land with both feet inside the square, holding still for two seconds before walking back, five times within forty-five seconds.
Why it helps
A short power burst that builds leg strength and landing control.
3 minDifficulty 3
The Trial
Brace against something while doing one task today rather than holding yourself in position, and compare the effort.
Why it helps
Holding yourself in position to do something costs more than the task does. Bracing against anything nearby gets the same result for a fraction.
1 minDifficulty 4
The Trial
Roll one pair of socks into a ball and place an empty bowl on the floor three big steps away. Stand still and look only at the bowl for a slow count of ten. Then make one underarm throw. If it misses, the attempt is over.
Why it helps
Firing off half-ready attempts and correcting as you go burns time and confidence. Settling your aim first and committing once trains you to make the shot that counts, in work and play.
1 minDifficulty 3
The Trial
Enter one thing today well before the normal time for it, accepting the worse conditions now in exchange for being established when others arrive.
Why it helps
Entering at the normal time means meeting everyone else as an equal. Being months early means you are established before the competition exists.
2 minDifficulty 2
The Trial
Hook a rubber band over one end of a ruler, stretch it back and catch it on a paper clip taped near the other end so it stays loaded on its own. Lay the ruler flat between two low stacks of books that flank both its sides to form a burrow, with the firing end poking just clear of the books and a straight, open line from it to an empty paper cup about thirty centimetres away, pointing away from any person. Sit with both hands resting in your lap for three minutes on a timer, then lift the band off the clip with one finger in a single release to knock the cup over.
Why it helps
A calm little engineering puzzle that turns waiting into part of the plan and ends with a satisfying snap.
10 minDifficulty 1
The Trial
Beforehand, untimed, thread a drinking straw onto a string, tie the string taut between two chairs or door handles five metres apart, and put a balloon and two strips of tape ready at one end. Set a random-interval timer as the departure cue; when it sounds, inflate the balloon, tape it to the straw and let go within twenty seconds, and if it stalls, pull it back and relaunch until it crosses the whole string nonstop, all within two minutes of the cue.
Why it helps
A tense, noisy launch that makes the idea of carrying your own fuel vivid.
5 minDifficulty 3
The Trial
Fold one paper aeroplane, taking as long as you need to get it right. Put a cushion or an open box on the floor about three metres away and stand still at your mark. Launch the plane in a single throw at the target. You get one throw only, whether it lands or not.
Why it helps
The moments that need you quick, an answer in a meeting or a catch on the pitch, go well when the preparation was done earlier. Doing the slow part first means you can act at full speed when it counts.
1 minDifficulty 3
The Trial
On a hard, smooth floor, prop a board or tray on a stack of books to make a ramp at least 30 cm high at the top and tape a finish line three metres past its foot, with three balls waiting at the bottom. When a helper shouts "Eagle!" at a moment you do not expect, carry each ball up and set it at the top of the ramp, letting go without pushing, so that all three roll across the finish line within ten seconds of the shout.
Why it helps
A quick, jumpy indoor dash that shows how much work a little height can do for you.
5 minDifficulty 3
The Trial
On grass or a clear, non-slip floor, tape a start line, make one warm-up standing jump and tape a target line at three-quarters of that distance. Hold a still, loaded half-crouch with toes at the start line; over one minute a helper standing well to the side claps three times at unpredictable moments, and on each clap you launch one two-footed jump that must land with both heels past the target line, then walk back and reload.
Why it helps
A jolt of reaction training that gets the heart going in a minute.
4 minDifficulty 4
The Trial
Stage one thing beside an opportunity today rather than committing it into the opportunity, so a false start costs you nothing.
Why it helps
Committing into an opportunity before it is reliable means losing everything if it closes. Staging beside it means a false start costs you nothing.
2 minDifficulty 2
The Trial
Name the shutdown or quiet period you intend to take. Put one concrete piece of its funding in place today, in money, prepared work or arrangements, before the period begins.
Why it helps
Taking a break you have not funded means spending it anxious and cutting it short, so it restores nothing. One concrete piece of funding put in now is what makes the break a real one.
2 minDifficulty 2
The Trial
Place something today where the conditions for it do not yet exist but will, and commit to staying with it until they arrive.
Why it helps
Waiting for conditions before placing anything means arriving with everyone else. Placing it early and guarding it means you are already there.
2 minDifficulty 1
The Trial
Take one thing you have been hiding because it is not ready. Put it somewhere completely open today, make no special presentation of it at all, and leave it sitting among ordinary things.
Why it helps
Hiding something until it is ready means it never gets the small corrections that only come from being seen. Putting it out unframed gets you those without it becoming an event.
2 minDifficulty 2
The Trial
Name one thing you have been waiting for a partner, approval or counterpart to begin. Start it on your own today, at whatever scale you can reach alone, then leave it to develop without chasing anyone.
Why it helps
Waiting for someone else to make something possible means it sits at zero while you tell yourself it is blocked. Starting it alone puts something real in the ground that can develop without them.
2 minDifficulty 3
The Trial
Scoop the seeds from a squash, pumpkin or melon that has already been cut open for a meal, with no cutting for this Trial, rinse off the pulp and pat them dry. Spread them in a single, non-touching layer on paper or a plate in a dry, airy spot and label it with the date.
Why it helps
A batch of seeds to roast or plant later, from what would have been thrown out.
15 minDifficulty 1
The Trial
Start one new thing today physically inside or beside its supply, the place the users already are, the room where the work happens, rather than somewhere you then have to bring it from.
Why it helps
Starting something away from its supply means your every day is spent bridging the gap. Starting it inside the supply means that work never exists for you.
2 minDifficulty 2
The Trial
Rebuild one thing that takes repeated impact today in layers so damage is contained rather than prevented, and stop trying to make any single layer harder.
Why it helps
Making one layer hard enough never to crack means it holds until it fails completely, without warning you. Layers that contain cracks let the thing keep working while damaged.
2 minDifficulty 1
The Trial
Lead someone to something today in short stages, stopping and waiting at each until they have caught up, and go no further ahead than that.
Why it helps
Going ahead because you know the way means arriving alone and having to go back for them. Short stages with a wait at each gets both of you there once.
2 minDifficulty 3
The Trial
Stick six small tape squares in a line on a clear, non-slip floor, starting half a metre apart and widening to about a metre. Leap from square to square, landing on both feet and holding steady for a count of two before each next leap.
Why it helps
A short, playful balance workout that wakes up your legs.
8 minDifficulty 2
The Trial
Name the thing you are genuinely best at and the thing you are visibly bad at because of it. Today, do a real task entirely inside your strength, and deliberately hand off or skip the weak part rather than practising it. Then say out loud, to one person, that the second thing is a cost you are choosing.
Why it helps
Trying to be adequate at everything leaves you excellent at nothing and tired as well. Naming the weakness as a deliberate cost frees the hours you were spending apologising for it.
2 minDifficulty 3
The Trial
Arrange to work on your own separate tasks alongside one other person, in the same place or on an open call, each doing your own thing but visible to the other. Run it for one real session today.
Why it helps
Working alone means every stall lasts as long as your own patience. Having someone visible doing their own thing keeps you going without either of you managing the other.
2 minDifficulty 2
The Trial
Stay within sight of your group while moving today so one of you can hand off to another before being spent, and make one handoff.
Why it helps
Moving out of sight of each other means whoever is chasing runs out alone. Mutual visibility lets the next person take over before you are spent.
1 minDifficulty 4
The Trial
Identify one habit of speech or working style you picked up from the people around you without deciding to. Name where it came from out loud, then decide today whether to keep it or deliberately drop it.
Why it helps
Most of how you work was absorbed from whoever you happened to sit near, not chosen. Noticing one of those and deciding on purpose is how you stop carrying habits that were never yours.
2 minDifficulty 1
The Trial
Track one day of interruptions and sort them out loud into the ones that ever actually need you and the ones that never do. Then show yourself turning off, muting or closing the second group.
Why it helps
Treating every interruption as equally urgent is what fragments your day. Sorting them once by what actually needed you lets you silence most of them permanently instead of deciding again each time.
2 minDifficulty 1
The Trial
Shorten how long you occupy one indefensible position today rather than trying to defend it, and leave early.
Why it helps
Defending a position you cannot hold means losing it eventually with more invested. Shortening your stay means you are gone before it matters.
2 minDifficulty 2
The Trial
Pick one thing you finished recently and left a trail of behind, open files, half-built workarounds or temporary access. Close all of it today so nothing remains for anyone to follow.
Why it helps
Leftovers from finished work sit around until someone trips over them or uses them wrongly, and it comes back to you. Closing the route behind you ends the thing properly instead of almost.
2 minDifficulty 2
The Trial
Choose one quiet corner of your workspace and leave it completely untouched for fifteen minutes while you work elsewhere.
Why it helps
You turn spring return into one concrete, visible experience instead of an abstract idea.
10 minDifficulty 1
The Trial
Choose one small empty shelf, chair, tray or patch of desk and keep it completely unused for fifteen minutes while you work around it.
Why it helps
You turn low listening into one concrete experience with a visible finish.
15 minDifficulty 1
The Trial
Leave a small dated-and-timed note in a shared household or work area telling a consenting person one useful fact about what changed there.
Why it helps
You turn edge scent into one concrete experience with a visible finish.
10 minDifficulty 2
The Trial
Take one thing you have been polishing before showing anyone - a message, a room, a piece of work, a profile. Deliberately leave three real imperfections in it: the crossing-out, the honest gap, the unfinished edge. Then show it to one person today in that state and say nothing apologetic about the three.
Why it helps
Polishing something until it is flawless is what makes people distrust it, and it is why you never ship. Leaving the real damage visible gets you a faster, more honest response from the person who matters.
2 minDifficulty 1
