On Friday, August 2, 2019 at 8:33:26 AM UTC-5, casagi... wrote:
Inarguably, we have had no confirmed contact with Aliens.

Why ? Because practical deep space travel is clearly impossible.

Do the simple math :

Distance = Speed x Time

Distances are far too great, Speeds are far too slow and
Times would be prohibitively far too long .

Note that our fastest space probe so far is slower than light by a factor of nearly 27,000 .
So a one way trip to our very nearest neighbor Alpha Centauri at only 4.367 LY
would take 118 Millennia, where i Millenia = 1,000 years.

Even in the extreemly unlikely event that speeds could be increased to near light speed, times would still be prohibitively long.

Confirmation : It is very likely that sentient space faring species abound throughout the universe yet again no confirmed contact so far.

You put too much faith in science and math. We are still in the stone age.