What is it about that phrase, "here's why", that gives me the most patronizing booner vibes?
It assumes that you don't know that you can read the fucking article if you want to find out why (because that's how articles work)
Don’t know but I feel the same way….and one day, i know that our vengeance will exacted without mercy.
Here's why: it sounds like it assumes you don't know shit even when that's not the intention
TL;DR: Allowable differences in the dimensions of venues make more precise timing unreliable.
Timing beyond the hundredth of a second is not a reliable indicator of athlete performance. Instead, when capturing millimetres of movement with each frame, you might be capturing allowable differences in the measurement of the pool, track or other venue.