David Olson

Yeah. And then when it harvests the chemical energy, energy for its own purposes, what's left over is lact gas.

That's the byproduct. That's like microbial poop, basically.

That's the byproduct. That's like microbial poop, basically.

That's the byproduct. That's like microbial poop, basically.

The good thing is that humans... seem to like the flavor of lactic acid. And even when a food source gets pretty acidic, and we're talking about below 4.5 on the pH scale, like we find it pretty palatable and it's something that we enjoy eating. So they're in the Venn diagram of foods that microbes like and foods that humans like. There's a lot of overlap there.

The good thing is that humans... seem to like the flavor of lactic acid. And even when a food source gets pretty acidic, and we're talking about below 4.5 on the pH scale, like we find it pretty palatable and it's something that we enjoy eating. So they're in the Venn diagram of foods that microbes like and foods that humans like. There's a lot of overlap there.

The good thing is that humans... seem to like the flavor of lactic acid. And even when a food source gets pretty acidic, and we're talking about below 4.5 on the pH scale, like we find it pretty palatable and it's something that we enjoy eating. So they're in the Venn diagram of foods that microbes like and foods that humans like. There's a lot of overlap there.

And when they get the party down in our food supply, we seem to like what they do. And so this is, in every way, shape, and form, a symbiotic relationship.

And when they get the party down in our food supply, we seem to like what they do. And so this is, in every way, shape, and form, a symbiotic relationship.

And when they get the party down in our food supply, we seem to like what they do. And so this is, in every way, shape, and form, a symbiotic relationship.

And how is it the same? It is, it is... It is different, but it is the same. We're going to go back down the phylogenetic tree of life to the origin of eukaryotes. So there's filamentous fungi floating in the ocean. And then... One of these multicellular organisms was like, I'm going to revert back to being a unicellular, just me and my kids floating as little dots in the sea, microbes.

And how is it the same? It is, it is... It is different, but it is the same. We're going to go back down the phylogenetic tree of life to the origin of eukaryotes. So there's filamentous fungi floating in the ocean. And then... One of these multicellular organisms was like, I'm going to revert back to being a unicellular, just me and my kids floating as little dots in the sea, microbes.

And how is it the same? It is, it is... It is different, but it is the same. We're going to go back down the phylogenetic tree of life to the origin of eukaryotes. So there's filamentous fungi floating in the ocean. And then... One of these multicellular organisms was like, I'm going to revert back to being a unicellular, just me and my kids floating as little dots in the sea, microbes.

It's kind of like whales going back into the ocean. Wow. Fungi evolved from single-celled organisms and yeast, nothing truly devolves, but yeast went back from being multicellular organisms to adopting a single-celled lifestyle once again. Wow. Which is interesting.

It's kind of like whales going back into the ocean. Wow. Fungi evolved from single-celled organisms and yeast, nothing truly devolves, but yeast went back from being multicellular organisms to adopting a single-celled lifestyle once again. Wow. Which is interesting.

It's kind of like whales going back into the ocean. Wow. Fungi evolved from single-celled organisms and yeast, nothing truly devolves, but yeast went back from being multicellular organisms to adopting a single-celled lifestyle once again. Wow. Which is interesting.

Yeast are cool critters. They are eukaryotes like us, which means they have a cell nucleus. There are thousands of varieties. And all yeast really means is single-celled fungi. So we think of yeast as like, oh, yeast is the thing that is in bread. But there are like thousands and thousands of varieties of yeast. So many different types and clades. And so they do a lot of the same things.

Yeast are cool critters. They are eukaryotes like us, which means they have a cell nucleus. There are thousands of varieties. And all yeast really means is single-celled fungi. So we think of yeast as like, oh, yeast is the thing that is in bread. But there are like thousands and thousands of varieties of yeast. So many different types and clades. And so they do a lot of the same things.

Yeast are cool critters. They are eukaryotes like us, which means they have a cell nucleus. There are thousands of varieties. And all yeast really means is single-celled fungi. So we think of yeast as like, oh, yeast is the thing that is in bread. But there are like thousands and thousands of varieties of yeast. So many different types and clades. And so they do a lot of the same things.

If we're baking sourdough bread, They use the action of some of those same lact gas bacteria that we just talked about. They'll take sugar and they will produce ethanol, yes, but they'll also produce carbon dioxide.