How an Accidental Glitch [Speedfrog] changed Ocarina of Time Speedrunning Forever

Speedfrog is the name of the exploit. Apparently there's a bug in King Zora's "give item" code. I found this: https://old.reddit.com/r/speedrun/comments/6ljvy0/oot_why_does_early_eyeball_froghold_r_lol_work/