The "Powers That Be" are not smart enough to engineer Armageddon, but they may yet be stupid enough. If governments are involved in covering up the knowledge of aliens, then they are doing a much better job of it than they seem to do at anything else.

I think the next century will be the century of complexity.

Many badly needed goals, like fusion and cancer cure, would be achieved much sooner if we invested more.

You can't regulate every lab in the world.

The human failing I would most like to correct is aggression. It may have had survival advantage in caveman days, to get more food, territory or a partner with whom to reproduce, but now it threatens to destroy us all.

It [AI] would take off on its own and redesign itself at an ever increasing rate. Humans, who are limited by slow biological evolution, couldn't compete and would be superseded.

There is a real danger that computers will develop intelligence and take over. We urgently need to develop direct connections to the brain so that computers can add to human intelligence rather than be in opposition.