the.com/fingertip
the body's busiest spy, reading the world in ridges no two people share.
Touch densityPacks around 2,500 nerve endings per square centimeter.
Microscopic limitCan feel bumps the size of single molecules.
Self-repairPrints regrow exactly the same after healing.
No bonesTips are pure flesh past the last knuckle.
Wrinkle trickPruny fingers grip wet objects better, like tire treads.