A Princeton physicist has shared an inconvenient truth of his own–climate change models are based on an alternate reality. “And I know they don’t work,” Princeton University physicist William Happer says in a video produced by Prager U. “They haven’t worked in the past.”

“They don’t work now. And it’s hard to imagine when, if ever, they’ll work in the foreseeable future.”

“In the video, Happer argues that even supercomputers used to predict the weather and forecast future global warming aren’t strong enough to capture the complexity of Earth’s atmosphere, including cloud cover and natural ocean cycles,” Michael Batasch, who wrote about the video in The Daily Caller, writes.

“That’s why, over the last 30 years, one climate prediction after another — based on computer models — has been wrong,” Happer says. “They’re wrong because even the most powerful computers can’t solve all the equations needed to accurately describe climate.”

As Batasch recounts, Happer’s are not the only observations within the scientific community that break with current wisdom: “We haven’t seen that rapid acceleration in warming after 2000 that we see in the models,” Myles Allen, a geosystem scientist at the University of Oxford, stated in 2017. “We haven’t seen that in the observations.”