Still, efforts to expand access in the rural, largely conservative areas that cover most of the state have encountered resistance and incredulity.

France's Emmanuel Macron was among the first to expressed incredulity on Monday.

"Kevin Costner sought me out," he giggles, adding with growing incredulity: "He wanted to come and tell me about the movie."

Musk and Ramaswamy’s bold promises have incited some incredulity among experts, who say the size and scope of their mandate borders on the impossible.

They assume varied states of reaction to the event — astonishment, meditation and incredulity among them.