Since this has generated some discussion on locks and picking, there's been some interesting developments on "unpickable locks" that sidestep the tolerance problem by decoupling setting the pins from testing them. I.e. pins are tested all at once after they are physically decoupled from the key & keyway, eliminating state space reduction attacks (aka picking one pin at a time) leaving only brute force.
One such effort features locks made by Stuff Made Here sent to Lock Picking Lawyer. According to LPL the locks are theoretically sound and he did not attempt to pick them, but these particular implementations had a couple (easily fixable) bypasses. Made for interesting videos on both sides:
Whelp it seems I recalled incorrectly this time, because LPL did pick the second one open, via a weakness in the design that he believes can be patched. I don't think my sentiment was totally off base, but clearly my statement about not being picked was factually incorrect.
One such effort features locks made by Stuff Made Here sent to Lock Picking Lawyer. According to LPL the locks are theoretically sound and he did not attempt to pick them, but these particular implementations had a couple (easily fixable) bypasses. Made for interesting videos on both sides:
Stuff Made Here describes the design in detail: TWO Unpickable (?) Locks for Lock Picking Lawyer! - https://www.youtube.com/watch?v=2A2NY29iQdI
Lock Picking Lawyer reviews them and performs some bypasses: [1299] Unpickable Locks From Stuff Made Here - https://www.youtube.com/watch?v=Ecy1FBdCRbQ