[18al]

Using rate of speed up is probably a bad metric due to varying densities, but even if one were to account for that and use some kind of smart speed up app that maintains constant information throughput, the issue is with not taking pauses to ruminate.

It's more of an information retention problem rather than an information loss one. IE not committing to long term memory as the author states.

Not very unlike consuming food without chewing.

[BlueTemplar]

Yeah, I've noticed that with text I'm going to make more pauses thinking about what I just read (especially printed text for some reason). Video is the worst, while audio only in the middle. Maybe because of clunky controls ?