Another terrific episode with a singularly engaging guest. I loved it. The only thing that puzzled me is the importance that Garland placed on galactic space travel. I just don't see it, except maybe in the longest of terms. First of all, where would we go? Why?<br>It seems to me to be far simpler to finally limit (population) growth and actually engage in ecological living. Or, better yet, live in a simulation a la DEVS.<br>Neither is easy, but the latter is at least understandable.,(reply>), @Jonathan S. I meant it literally – what would the intergalactic destination be? Why would we favor this long voyage over, say, colonizing the sea bottom, building a space station, etc. These latter options seem far more predictable in outcome and overall less risky. Note that I'm mainly responding to – and pushing back on – the notion that deep space travel is necessary. I do agree that if we talk centuries it is inevitable.,(reply>), Not sure what you mean by where would we go and why