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I'm cheering them on, but I'm not confident that the technology works, based on the people involved. I don't think the new physics underlying this work are published in a peer-reviewed physics journal.

Here's a page about John Brandenburg, one of the authors: <https://rationalwiki.org/wiki/John_Brandenburg>

Given how easy it seems to reproduce, someone had better explain this effect if it's not what is claimed there...

PS: this looks like anyone could reproduce or refute it in their basement for a few hundred dollars given all the details in the slides. I'm hoping some amateurs step in.

"Gem test" 1 and 2 on john brandenburg 's youtube channel :

https://www.youtube.com/watch?v=hqbOnqZtz3Y

https://www.youtube.com/watch?v=RSRbLA6dhtk

It all seems to suffer from some of the issues the EM Drive saw: the proposed effect is tiny and very, very difficult to tease apart from environmental and system noise. I hope I'm wrong.

I wonder what he'd think of the "jumping ring" experiment: https://wonders.physics.wisc.edu/jumping-ring/