Any civilization that doesn't develop space travel dies.

When permitted to listen to alternative opinions and engage in substantive debate, people have been known to change their minds. It can happen.

Any civilization that doesn't develop space travel dies.

Religions contradict one another-on small matters, such as whether we should put on a hat or take one off on entering a house of worship, or whether we should eat beef and eschew pork or the other way around, all the way to the most central issues, such as whether there are no gods, one God, or many gods.

Perhaps, in retrospect, there would be little motivation even for malevolent extraterrestrials to attack the Earth; perhaps, after a preliminary survey, they might decide it is more expedient just to be patient for a little while and wait for us to self-destruct.

For years I've been stressing with regard to UFOs that extraordinary claims require extraordinary evidence.

Sailors on a becalmed sea, we sense the stirring of a breeze.