The smartest mind on the planet said, we have to leave...

...but Gene Roddenberry 'transporter' technology has not been finalized from fifty years ago. So, there's only two places to go: heaven or hell!

Sorry if this comes as a surprise to anyone, but we live on a granite capped sphere with a molten lava river just underneath the surface just waiting for a crack or fissure to cleanse the very place where the inhabitants live. Those are called volcanoes!

Finally, if your bare feet are hot on the pavement of that bright, sunny Arizona day, it may not be asphalt which has not completely hardened. It could be that molten, lava river I mentioned before.