Tim Coulson

And when it does that, if the Earth's still in the orbit around it, it's going to burn the Earth up. And any life that may have survived until then is going to be destroyed. It's going to go extinct. However, we suspect that life's going to go extinct before then.

And the reason is, over the course of Earth's history, and in some ways this is a bit ironic, given what lots of people are talking about now, is that the atmosphere of Earth has been declining in the amount of carbon dioxide in it and increasing in the amount of nitrogen in it since it formed.

And the reason is, over the course of Earth's history, and in some ways this is a bit ironic, given what lots of people are talking about now, is that the atmosphere of Earth has been declining in the amount of carbon dioxide in it and increasing in the amount of nitrogen in it since it formed.

And the reason is, over the course of Earth's history, and in some ways this is a bit ironic, given what lots of people are talking about now, is that the atmosphere of Earth has been declining in the amount of carbon dioxide in it and increasing in the amount of nitrogen in it since it formed.

And in about a billion years' time, carbon dioxide levels are going to have dropped to such a low level that photosynthesis, so the way that plants make a living, is going to cease. And when plants cease to be able to do photosynthesis and create oxygen, then animals like us that require oxygen to breathe are going to go extinct as well. So we know that life on Earth will die out.

And in about a billion years' time, carbon dioxide levels are going to have dropped to such a low level that photosynthesis, so the way that plants make a living, is going to cease. And when plants cease to be able to do photosynthesis and create oxygen, then animals like us that require oxygen to breathe are going to go extinct as well. So we know that life on Earth will die out.

And in about a billion years' time, carbon dioxide levels are going to have dropped to such a low level that photosynthesis, so the way that plants make a living, is going to cease. And when plants cease to be able to do photosynthesis and create oxygen, then animals like us that require oxygen to breathe are going to go extinct as well. So we know that life on Earth will die out.

We know it may hopefully it's going to be a long time away. We know, you know, that we know the direction that it's going. We're not going to be here forever. Intelligent life's not going to be here forever because the Earth's not going to be here forever. Now, of course, that's still a very long way away.

We know it may hopefully it's going to be a long time away. We know, you know, that we know the direction that it's going. We're not going to be here forever. Intelligent life's not going to be here forever because the Earth's not going to be here forever. Now, of course, that's still a very long way away.

We know it may hopefully it's going to be a long time away. We know, you know, that we know the direction that it's going. We're not going to be here forever. Intelligent life's not going to be here forever because the Earth's not going to be here forever. Now, of course, that's still a very long way away.

And who knows, in the coming years, in the coming decades, in the coming centuries, humanity may end up finding a way to get to other planets outside of our solar system and forming colonies there. We can't do that yet. But science has brought us on a hell of a journey and it may continue to take us on a journey further.

And who knows, in the coming years, in the coming decades, in the coming centuries, humanity may end up finding a way to get to other planets outside of our solar system and forming colonies there. We can't do that yet. But science has brought us on a hell of a journey and it may continue to take us on a journey further.

And who knows, in the coming years, in the coming decades, in the coming centuries, humanity may end up finding a way to get to other planets outside of our solar system and forming colonies there. We can't do that yet. But science has brought us on a hell of a journey and it may continue to take us on a journey further.

where as we learn more, we do realize that we are able to colonize the galaxy. But at the moment, it will take us a very long time to get to those planets.

where as we learn more, we do realize that we are able to colonize the galaxy. But at the moment, it will take us a very long time to get to those planets.

where as we learn more, we do realize that we are able to colonize the galaxy. But at the moment, it will take us a very long time to get to those planets.

Wonderful. Thank you very much for having me on, Mike. It's been entirely my pleasure.

Wonderful. Thank you very much for having me on, Mike. It's been entirely my pleasure.

Wonderful. Thank you very much for having me on, Mike. It's been entirely my pleasure.