Slow Travel
&gt; Earth can’t afford for everyone to routinely hop on a jet-fueled aluminium cylinder and fly ten hours at a time.<p>Flying is expensive enough that it&#x27;s already not something that everyone does routinely. And once we get electric planes, then Earth will be able to afford that.<p>&gt; we decided incorrectly that we needed to travel one time-zone per hour.<p>That wasn&#x27;t incorrect. I&#x27;d rather put up with some jet lag than for all of my travel to take several times as long.