That analogy is desperately tortured. It just ... does not map at all to how I ever perceived reading or fun videos. I never even heard anyone talk about it is those terms.
The time spend by purely relaxing activities like reading or watching is on itself a reward. You do it instead of doing something less pleasant- staring bored at the wall.
And the idea that you could have spent all that time doing something super useful is wrong if it is about opportunity cost. I tried multiple times to cut off all "time wasters" like reading fiction or videos. It ended in low productivity and depression each time.
The time spend by purely relaxing activities like reading or watching is on itself a reward. You do it instead of doing something less pleasant- staring bored at the wall.
And the idea that you could have spent all that time doing something super useful is wrong if it is about opportunity cost. I tried multiple times to cut off all "time wasters" like reading fiction or videos. It ended in low productivity and depression each time.