Originally posted by: DrPizza
Just checking to see if the 1st person to respond agrees. :thumbsup: to you

(I refreshed the Off Topic page and thought "gasp! Wooops!")
Here's Kaku on
SETI and our arrogance. (Better video than in the OP)
Better video, except for the severely schizophrenic camera work.
What do they have there, 5 cameras, with 200 different filters? So much video these days seems designed to simulate the effects of either drug overdose, or a severe stroke.
And SETI stuff - maybe ET's communicate in encrypted signals. That might be a problem for detecting their transmissions. And then there would inevitably be lawyers, suing for invasion of privacy.
His thoughts border on something I wonder about: Should we perhaps consider limiting our broadcast into space? I wonder if there might be predatory races out there, things that'd make the ID4 aliens look like comatose toddlers. Things that wipe out planetary populations like we would consume an apple.
Then here we are, broadcasting EM transmissions all over the place, like a mouse in an open field wearing a bright vest that says "EAT ME."
In that sense, you can look at a galaxy as one ecosystem, undergoing evolution. The life that tends to be quiet survives. Life that makes a lot of noise, like us, attracts predators, and dies out.
Natural selection, but on a much larger scale than what we see on Earth.
Concerning visitation by ET's, and the extreme distances between star systems, we also incorporate our own ideas of lifespan. We see long distances as a major problem because of how fragile we are, and how short we live. Some ET species might live for eons, they might be android type life, and they might have no problem with going into stasis for 200 million years during a space flight.
Edit: I made the mistake of reading the Youtube comments. This gem:
"We are human not GOD We can not Create But only destroy threw the help of satan look at Mans History when have we ever made anything that was was good? Never! nuclear weapons even nuclear power (
tranoble)"
Yeah, that's.......um, almost close to the correct spelling. Clearly he knows exactly what he's talking about.