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Perhaps there is hope for humanity after all

Yes I was aware of these facts beforehand. By the way, oxygen is not an energy source itself but is essential for the extraction of energy from organic molecules during aerobic respiration. And by implying that 'this mass extinction lead to all complex life on earth' is simply wrong because it alone was not the sole reason. More accurately it can be said that the rise in oxygen levels combined with mass extinction created the conditions necessary for the evolution of complex life on Earth. I got mixed up and made a silly mistake that slipped out of my notice until you've pointed it out. The correct that I wanted and should have written is: "but eventually life found a way to utilize oxygen for metabolism through cellular respiration although not always exclusively" But after a little reflection, I realised that the above statment would still be an incorrect one. As you mentioned, a lot of organisms died in the process because oxygen was poisonous to them but life didn't instantly evolved to be able to tolerate oxygen and perform aerobic respiration. Some microorganisms (likely ancestors of modern aerobic organisms) already had the biochemical machinery to use oxygen, but most likely this was initially just a minor adaptation. As natural selection goes, when oxygen levels rose dramatically, those organisms that could tolerate or even use oxygen for energy had a significant survival advantage. Since aerobic respiration is far more efficient at generating energy than anaerobic processes, this ability became more widespread and refined through evolutionary processes and is now a dominant metabolic pathway for many organisms. Even cyanobacteria, the main contributors of the oxygen uprise, was one of the earliest organisms that could perform aerobic respiration so that it could metabolize even in the absence sunlight and thrive in the oxygen-rich environment.

Hello. Nice to meet you as well. I am not a member. I actually don’t know much about fish. I’ve never liked eating it growing up and have always been repulsed by fishing. But I like ecology which is how I came to this book. Plus Duncan is from the same area and I often hike the places he mentioned. I’m more into aquatic plants than aquatic fauna. I live on a river though and hope to do some restoration to it down the road. At least in the parts I can. Already moved over 300 invasive plants and dug out a lot of trash.

Psychiatrists who get concerned about someone telling others that they need to try harder to do something better so that things turn out better, and then they go on to tell all sorts of nonsense in a hostel. But when you ask them why they even said such things, they just joke it off. I wrote about it in more detail in the book. I can share their contacts, but I don't think anything good will come of it. Nobody listens to what I say, and they claim it's some kind of nonsense. Some other psychiatrists will burden me even more with something on the street, or someone I know will bother me with some similar nonsense.

How do you feel about the fact that many psychiatrists believe that scientists' work is useless, that science itself is pointless, and that no one needs to do anything—just relax? For example, they say that nothing in the world can be changed or improved, that past events are the reason for this, and that people's decisions have almost no influence. They claim that if you believe something can change in life or that people's lives can improve because of science, you are just as delusional as the scientists themselves. This question is explored in more detail in the book Harry Potter, Immortality, and the Conspiracy of Psychiatrists.