>by 500,000 years from now on the Earth will have likely been impacted by a meteorite of roughly 1 km in diameter
Nah. Let's be optimistic. Within a few decades we will have developed the ability to deflect all dangerous asteroids.
Also, the idea in the article that we will allow the historically priceless Californian coast to disappear 100,000 centuries from now is preposterous. Our ability to alter geography has increased by orders of magnitude in the last century alone thanks to the development of earth moving machinery.
Ditto permitting the Sun to destroy the solar system, etc.
You're assuming that a future society will have the same interest as we do in conserving physical artifacts. A physical structure like a coastline takes up a lot of space and matter compared to the amount useful information it holds. If we're going to be efficient about it, you could map California down to the nearest micrometer and save the data to some form of very high density storage.
Nah. Let's be optimistic. Within a few decades we will have developed the ability to deflect all dangerous asteroids.
Also, the idea in the article that we will allow the historically priceless Californian coast to disappear 100,000 centuries from now is preposterous. Our ability to alter geography has increased by orders of magnitude in the last century alone thanks to the development of earth moving machinery.
Ditto permitting the Sun to destroy the solar system, etc.