Do they hide their names? It shows you are ready to stand behind your ideas, live for them, even be imprisoned or die for them.
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A few hundred years ago Sagan would be put death for some of the things he says. Things have changed dramatically on that front, and that is a good thing.
It is called ACCOUNTABILITY
But most of you lack any balls...
Even Sagan could understand that 1 cubic inch of matter could be divided infinitely to smaller and smaller sizes. Even finite math leads to infinity ♾