vokzhen t1_jb6n8j6 wrote on March 6, 2023 at 8:53 PM

Reply to comment by apj0731 in Is there evidence of human relatives like homo erectus making it to Australia? by Mythical_Atlacatl

> There were periods of time when Indonesia was accessible by foot

This rough map of now-submerged river systems is what really made it "real" for me.

vokzhen t1_iyx4njh wrote on December 4, 2022 at 9:03 PM

Reply to comment by NetworkLlama in Why not use hydrogen and deuterium in fusion reaction rather than tritium and deuterium? by Curious_user4445

For those who don't grasp what this means very well, those numbers mean a gram of tritium is enough for about 400,000 watches.

vokzhen t1_iujwo4q wrote on October 31, 2022 at 9:58 PM

Reply to comment by Bobithie in Eli5 What are the long term consequences of drugs that suppress REM sleep? by muted_Log_454

We used to believe dreaming always happened in REM sleep, but we've later discovered that's not actually true. It can happen in the other stages as well, most often in NR3 and least often in NR1.

But it's also possible it was "hypnogogic hallucinations," which can be a dream-like state as you're falling asleep. If you've had the experience of thinking about something and suddenly jerking awake (hypnogogic jerks) and feeling like you were in a light dream, it was probably that an not a "true" dream (if the two can even be fully distinguished, I'm not up to date on the research). For me, whether by jerking awake, or rolling over, or something else, I often "wake up" from a hypnogogic hallucination and find myself feeling well-rested, regardless of how tired I was just a few minutes previous.