Momentum Threshold

The momentum threshold is a mechanic that stops the player from moving when their momentum has become negligible.

At the end of every tick, after applying slipperiness, it considers the absolute value of the X and Z components; if it's smaller than 0.005, it is set to 0.

This same mechanic also affects the player's Y movement, as the player's vertical speed at the peak of the jump would be equal to ~0.00302.

In 1.9+, The momentum threshold has been lowered to 0.003, which increased the jump height to ~1.252 (up from ~1.249).

Interestingly, the X and Z velocity components are treated independently in this process, which sometimes causes the player to move in a slightly slanted direction when one of the components has reached threshold speed.

In other games, this threshold concept is usually applied to the velocity's norm instead.

Momentum threshold notably affects Tapping and turn-based jumps.