BWV's latest activity

For one, wounds won’t heal properly in microgravity and we have no idea what the impact would be on a developing fetus (and never will...

so at best it would be like condemning yourself and your unborn generations to live out their lives on a cruise ship but with fake food...

I don't see any evidence that this is more than sci-fi fantasy. Yes there are (technological barriers). There is no technology that...

Yes, although self-replicating robot probes rather than generation ships is the typical formulation. However generation ships are...

I think the Fermi paradox is different than what has been stated here. I think it goes like this: (1) We can already envision our...

My simple calc was 60k stars within 100ly out of 100 billion potential, but that would have an upper limit of around a million...

It's more like tens (or perhaps hundreds) of thousands. With millions of civilizations, randomly spread, there would be a high...

Even then - with a 100LY limit for communication that is 60k stars, so there could be tens of millions of technological civilizations in...

With intelligence goes a ladder of exploitable energy resources to get to a technological civilization. This would include plants and...

The Fermi paradox is specifically about advanced life able to make contact with us. This is different from the origin of life, but life...

Thought this part was interesting- even this early no pop III stars:

Yes, but not necessarily with earth, just if there is any natural processes that could impart the energy to accelerate an object to...

Sure but my OP was an upper limit for projectiles from natural processes, not space travel. Looks like the only candidate that could...

Note you need at least two orbiting massive objects for a (normal) gravitational slingshot, not just one, in order for a test particle...

This lady has the prettiest voice in the world.