Do his claims check out?

No.12831628 ViewReplyOriginalReport
Any hope for any of this stuff being possible?
A stable isotope of element 115 used in an anti-matter reactor, gravitation wave-guides to distort space-time, etc etc.

Also I found perhaps two conflicting entries on element 115 that maybe someone can clarify: one from "rationalwiki":
https://rationalwiki.org/wiki/Robert_Lazar
>Long before Moscovium was synthesized, and assigned the number 115 on the periodic table of elements, Lazar claimed it was capable of powering anti-gravity engines. Some people feel this vindicates Lazar (and proves the rest of his kooky claims). However, for Bob Lazar to be right, virtually all of modern atomic physics would need to be wrong:
“”Unfortunately, the very method of his apparent vindication – that element 115 had finally been created – directly contradicts a key claim that Bob Lazar made: Ununpentium cannot be synthesized in a lab. That it must be found in naturally occurring deposits that can only be made in high-mass star systems.[18]

>Claims of stable isotopes of element 115 are unlikely according to our knowledge of nuclear physics: in particular, the predicted Island of stability and known magic numbers. Magic numbers as we know them are always even numbers; therefore, it is very unlikely (admittedly not impossible) to have stable heavy elements with odd numbers of protons.

And then from wiki itself:
https://en.wikipedia.org/wiki/Island_of_stability
>"The longest-lived nuclides are also predicted to lie on the beta-stability line, for beta decay is predicted to compete with the other decay modes near the predicted center of the island, especially for isotopes of elements 111–115."