Scientists arrogate to themselves the authority to diagnose insanity, but they and their friends in the mainstream media believe some pretty nutty things.
Alan Guth concocted inflation theory in 1980 to avoid evidence for a 10,000-year-old universe. For his wild, evidence-free speculation, he may win a Nobel Prize.
If science were ever restricted to observation, experimental demonstration, and evidence, some cosmologists left that reservation far behind long ago. Being smart does not preclude going nutty.
In a mathematical tour de farce, two Oxford evolutionists have applied Darwinian natural selection to the multiverse to try to explain why it looks designed.