Dennis McKenna
๐ค SpeakerAppearances Over Time
Podcast Appearances
The brain of Homo habilis was small by comparison, about 500 cubic centimeters. Homo erectus, somewhat larger, maybe 1,000 cubic centimeters. There you go. Oh, yeah.
The brain of Homo habilis was small by comparison, about 500 cubic centimeters. Homo erectus, somewhat larger, maybe 1,000 cubic centimeters. There you go. Oh, yeah.
The brain of Homo habilis was small by comparison, about 500 cubic centimeters. Homo erectus, somewhat larger, maybe 1,000 cubic centimeters. There you go. Oh, yeah.
Yeah, that could be. I've got another chart. He's an anthropologist. Yeah, this is a good one. So Homo sapiens has the largest brain. Actually, Homo neanderthals have a slightly bigger brain. Right. But they're also much bigger people than Homo sapiens. So brain-to-body mass, that's about 1,500 centimeters. And so the fossil evidence is there.
Yeah, that could be. I've got another chart. He's an anthropologist. Yeah, this is a good one. So Homo sapiens has the largest brain. Actually, Homo neanderthals have a slightly bigger brain. Right. But they're also much bigger people than Homo sapiens. So brain-to-body mass, that's about 1,500 centimeters. And so the fossil evidence is there.
Yeah, that could be. I've got another chart. He's an anthropologist. Yeah, this is a good one. So Homo sapiens has the largest brain. Actually, Homo neanderthals have a slightly bigger brain. Right. But they're also much bigger people than Homo sapiens. So brain-to-body mass, that's about 1,500 centimeters. And so the fossil evidence is there.
What's also there is that in this environment, there's fossil evidence that there were cattle. These have been found. These people were living with cattle. They were hunting cattle. They were probably eating cattle. If you got cattle, you've got mushrooms. Would it have to be cattle? Could it be any other sort of megafauna? It could have been. It could have been. I mean, yeah.
What's also there is that in this environment, there's fossil evidence that there were cattle. These have been found. These people were living with cattle. They were hunting cattle. They were probably eating cattle. If you got cattle, you've got mushrooms. Would it have to be cattle? Could it be any other sort of megafauna? It could have been. It could have been. I mean, yeah.
What's also there is that in this environment, there's fossil evidence that there were cattle. These have been found. These people were living with cattle. They were hunting cattle. They were probably eating cattle. If you got cattle, you've got mushrooms. Would it have to be cattle? Could it be any other sort of megafauna? It could have been. It could have been. I mean, yeah.
It doesn't have to be cow shit that mushroom grows on. But we do know from fossil evidence that the ancestors of the modern cow was in this environment at that time. And we know from paleoclimatology that it was a wet environment. The Sahara is a desert now. But at that time, from paleoclimatological data, we know that it was a wet environment. There were seasonal rains at least.
It doesn't have to be cow shit that mushroom grows on. But we do know from fossil evidence that the ancestors of the modern cow was in this environment at that time. And we know from paleoclimatology that it was a wet environment. The Sahara is a desert now. But at that time, from paleoclimatological data, we know that it was a wet environment. There were seasonal rains at least.
It doesn't have to be cow shit that mushroom grows on. But we do know from fossil evidence that the ancestors of the modern cow was in this environment at that time. And we know from paleoclimatology that it was a wet environment. The Sahara is a desert now. But at that time, from paleoclimatological data, we know that it was a wet environment. There were seasonal rains at least.
It was lake country. It was savanna. So there was megafauna of all sorts. It was a humid, wet environment. There had to be mushrooms there. There just had to be mushrooms there because psilocybe comensis. If you go to any similar tropical environment these days, wet with Cebu cattle or similar cows, you're going to find these mushrooms. I mean, they're just there. They follow the cows.
It was lake country. It was savanna. So there was megafauna of all sorts. It was a humid, wet environment. There had to be mushrooms there. There just had to be mushrooms there because psilocybe comensis. If you go to any similar tropical environment these days, wet with Cebu cattle or similar cows, you're going to find these mushrooms. I mean, they're just there. They follow the cows.
It was lake country. It was savanna. So there was megafauna of all sorts. It was a humid, wet environment. There had to be mushrooms there. There just had to be mushrooms there because psilocybe comensis. If you go to any similar tropical environment these days, wet with Cebu cattle or similar cows, you're going to find these mushrooms. I mean, they're just there. They follow the cows.
And so in this, and these mushrooms in the environment, they're not difficult to spot. I mean, they're big. They're robust. So if you're a hungry hominid, Looking for something to eat. Sooner or later โ sooner rather than later, you're going to sample these. And then who knows what that effect would be. But then that's where these long-term effects of psilocybin on the neural reorganization โ
And so in this, and these mushrooms in the environment, they're not difficult to spot. I mean, they're big. They're robust. So if you're a hungry hominid, Looking for something to eat. Sooner or later โ sooner rather than later, you're going to sample these. And then who knows what that effect would be. But then that's where these long-term effects of psilocybin on the neural reorganization โ
And so in this, and these mushrooms in the environment, they're not difficult to spot. I mean, they're big. They're robust. So if you're a hungry hominid, Looking for something to eat. Sooner or later โ sooner rather than later, you're going to sample these. And then who knows what that effect would be. But then that's where these long-term effects of psilocybin on the neural reorganization โ
can begin to kick in, right? But what propagates that over evolutionary time? Well, this process which is known as Epigenetics.
can begin to kick in, right? But what propagates that over evolutionary time? Well, this process which is known as Epigenetics.