When Linus Pauling, winner of several Nobel Prizes, was old he became obsessed with Vitamin C. Later he came up with "orthomolecular medicine". His genius had been so great everyone at first strained to make sense of his new passions. He was a happy contrarian, sure he'd overturn the establishment again.
Eventually his colleagues just averted their eyes. It was a complete waste, and a bit of a sad end to a glorious intellectual career.
Now Freeman Dyson, another uber-genius, is convinced he's going to overturn the climate science establishment. Maybe, but it smells like Vitamin C to me.
Pauling and Dyson never had normal minds. So it's not surprising their minds may age very differently from the rest of us.