Cheap Astronomy - Implausible Engineering, Episode 6: Lasting the Distance

<p><strong>Hosted by Steve Nerlich.</strong></p> <p><strong>Immortality is hard work.</strong></p> <p><em>Episode 6a: Staying Switched On</em></p> <p>It's difficult to achieve immortality unless you also achieve invulnerability, since even if you don't age or</p> <p>get sick you can still die from a natural disaster, or a murder, or whatever. Indeed, the longer you live</p> <p>the more likely some unexpected calamity may come your way. So, if your only immortal up until the</p> <p>point that something goes wrong and you die, then you're not really immortal.<span class= "Apple-converted-space"> </span></p> <p> </p> <p><em>Episode 6b: Hopping Universes.</em></p> <p>The day is coming when our Universe starts winding down towards heat death and our by-then close-to-</p> <p>immortal descendants will need to find a fresh young Universe to continue in. After all, here we living in</p> <p>a Universe that apparently popped of nowhere, quite literally, since the whole idea of a Universe is that<...