The answer is incompressible noise. Hours of full on 8k video and 7.1 channel DTS of pure noise. There’s noise designed specifically to being incompressible and unable to deduplicate. I think some podcasts got in trouble with Spotify for something like this.
My little cousin was 10 during the height of the craze. I have been regaled with hours of FNAF lore that now lives rent free in my head. My YouTube recommendations were cursed for years. I still tease him about it nowadays and he cringes hard.