I didn't make the video, just posted it. I did comment on Linkedin

If you want the summary of how the "scam" works, or why it isn't true

Stage 1) research showed that blue-light in mega-doses impacts melatonin levels

Stage 2) ignore that the drop in melatonin has almost zero impact on sleep

Stage 3) sell blue-light blocking glasses, which block blue-light, which we saw in step 2 has no impact on sleep.

Stage 4) profit.

https://www.linkedin.com/posts/pedalpete_are-blue-light-bloc...

It's not even about sleep anymore. That was what f.lux's intent was back when the research first came out, but now it's been morphed by people trying to sell these glasses into "blue light is harmful". They talk about it like your eyes are getting damaged by blue light. Or that it's defending against eye strain caused by blue light rather than just overall luminance.

All of this is debunked in the documentary above.

This is how I feel about most of YouTube :)