re: #36 laZardo
There are entire swaths of our oceans that remain unexplored. Surely a little expedition there wouldn’t exactly cause a mass extinction.
We already know what we are likely to find down there, although it is teeming with unique and interesting species they will all be based on the same DNA/RNA as surface species.
In space we may run across things that have no Earthly counterpart.
Besides, I still want my flying car.