Radiometric dating.

As you can see watching the video it produced two, but one was closer towards the earth so it fell back under gravity and was absorbed back into the main body.

@@robbie_ hmmm

me too, so beautifully

The earth had no solid crust until it cooled down a lot. Impacts like these kept it very warm for a long time. If something the size of mars were to crash into Earth tomorrow, the seas would all boil and the earth's surface would become lava again!

🥰🥰🥳😱Aur bhejo aur iska aur bhejo

ما تحت بحياتي ابد

I agree. I really find him one of the foremost experts on early life and early metabolism. He seems to have a unique understanding of biological ecosystems that I’ve never heard anyone else use and explain he can explain things clearly yet has a profound grasp of the underlying biochemical pathways underneath his hypotheses. His book is a challenging read, absolutely loved it but it’s not for the faint hearted. If your are interested in this topic can I also suggest you look up Nick Lane , he’s put all his publications online nick-lane.net. His books are for the general public and very accessibility.

I guess one difference is that in turbulence, the system uses up its resources, so there isn't any *reliable* downward cause of changes in the constructor theoretic sense.

Björn Elmqvist för 2 minuter sedan (redigerad) I'm still trying to get my head around downward causation. What's your take on this? My thoughs: The "raised hands" that appeared in the room when Sara asked the audience to raise their hands, that's a description of a changing macrostate. Those hands do not exist in the world of particles and molecules. Atoms move because of laws of physics, so when a hand moves up, that would be because of a force produced in the interaction myosin/actin/ATP molecules. If you want to explain why all of the hands rised simultaneously; you could in theory do that by being Laplaces demon, entirely without understanding the information in the compressions of air that leaves from Saras mouth (her words). But you would'nt really understand the concept of "hands" either. Still... I agree that that things like planets sending symmetrical metal boxes in to orbit would be... unthinkable without "information" and "knowledge" as a part of that system. So it seems like there are physical phenomena that can't be understood "just" as physical phenomena. Or.. maybe this problem could be arising from "mixing of levels" as Sean Carroll puts it? "Satellites" and "Symmetrical boxes" are macrostates. The atoms of the satellites have all followed the same laws as all other atoms do. Those laws brought them into space, "so what?". The complex phenomenon of symmetrical boxes in orbit, that is caused by information and knowledge. But the atoms are not taking part in that level of description, they did not follow any kind of emergent rules that only apply on higher levels of complexity and appear in living systems. Inforrmation is causal - but only relevant for a causality on a certain level of description.... I think. (?)