Re: What is the best evidence for or against UFOs?

On 9/21/25 12:46 PM, Dawn Flood wrote:

> In my opinion, interstellar space travel is, now and forever, a 
> technological impossibility.  No matter how advanced a civilization 
> becomes, F = ma will still be true, and so, getting from one place to 
> another (an interstellar transfer orbit) requires energy, lots of it. 
> The bigger the rocket, the more energy, the bigger the rocket, ..., if 
> you get my point here.
> 
> This is probably also the reason that human beings will never set foot 
> on the planet Mars.

I'm slightly more optimistic than you. I believe Mars is reachable and
if we limit ourselves to unmanned tech, even Proxima Centauri &
beyond. It's even claimed that if we had maintained the funding on
nuclear propulsion we might already be there!

We = unmanned tech

But there's a temporal divide and not just one of distance.

Let's say aliens send a probe to investigate the life on earth.

Great. Life is BILLIONS of years old. So the odds say that it arrived
a couple of billion years before we evolved.

Homo, humans, are only like 2.5 million years old, starting with Homo
habilis...

So if a probe arrives once every million years, there's been two to
three since habilis.

Suddenly our odds of even detecting the debris from an alien probe
become ultra slim.





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