Aside from bringing back extinct species, reanimation could help living ones by restoring lost genetic diversity. The Tasmanian devil (aka Sarcophilus harrisii) is so inbred at this point that most species members can exchange tumor cells without rejection.
From George M. Church
Preventing ongoing extinction of elephants, rhinoceroses, and other threatened species is critically important. By all means, we must set priorities for allocating finite conservation resources.
The best way to predict the future is to change it.
I don't actually believe there's any such thing as privacy.
Why would you not have a robot that looks like Abraham Lincoln? Why would it look like an erector set? Why use a computer with a punchcard, when you could use one with a touch pen on the screen? Why a car, when you could use a jetpack?
Your genetics is not your destiny.
Letting the tundra melt is the equivalent to burning all of the forests in all of the world and their roots two and a half times over.
Our ancestors didn't need any genetic enhancements to be able to sit for twelve hours a day and eat fatty, sugary foods, but we need enhancements that handle that altered environment.
If we go into space, we need enhancements that handle radiation and osteoporosis... or else we're dead. So what seems like an enhancement in one generation becomes life and death in another generation.
I would argue that we're not limited by actual DNA. You can re-create the ancient DNA by looking at the genomes of existing animals.
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