I'm not legit into it but - learned the basics of space-time in school, in actual physics class, and now peruse occasional youtube vids at my leisure.
Crazy - some of the shit.
The main channel (which is fucking massive, with millions of hits), is, I think PBS space time.
These dudes explain how, leading physicists, via mathematics, can actually calculate historical and future solar/cosmic patterns - including the onset of the fucking ice age.
They then confirm their calculations via a variety of means, depending on the specific subject but - relative to the ice age - by taking "cores" out of the arctic landscape, and sediment cores, out the ocean.
According to their mathematics and proven science - over the course of tens to hundreds of thousands of years - the earth exists more so in a glacial (covered with fucking ice) state, to a much higher frequency than it is now.
So - the only reason humanity has managed to flourish to the extent it currently has - is cause of some huge outlier in the typical rotation of earth around sun, but also, Jupiter around the sun - which has allowed the temperature to basically remain habitable for us - and thus the time for technology to flourish.
Via our technology - CO2 emissions have risen - and this is highly likely to impact the the degree to which the next glacial phase may effectively - freeze us the fuck over.
In other words - our higher CO2 emissions, are kind of, stopping us from become human popsicles - or should do, over the next 10,000 years.
Does anyone legit follow this shit??