If you look at my profile picture, it shows a red gemstone. That is a red spinel, it's real and I bought it back in 1976 for $5. I've always assumed it was synthetic and I've been told by gemologists that it's "synthetic," because it has no inclusions, even up to 80x under a microscope.
Last week I was playing with perplexity.ai (a free lower grade ai) and I asked it how I could conclusively determine if it was natural. (Red spinels are, if they have no inclusions are extremely difficult to define as synthetic or natural--natural that's worth about $2,000 if synthetic it's worth about $2.
The ai said: Try a magnet, and I did. To my amazement the spinal was attracted to the magnet proving that it had iron in it, and NO synthetics do--it was natural. Woohooo.
How does this relate to PCa? Ask it questions and although (this ai, anyway) does not have access to the most recent data/studies, it does have access to quite a lot. And if I don't understand, I can ask it to simplify.
One caveat: It always does the: "Go ask your doc, bit." Fair enough, but to get deeper I've found that if I say, "stop with the go see the doc crap," it will.
YMMV and I find it rather fun, too, but then, uh....always check with your Practitioner (too).
And it might give you a really helpful answer on occasion--try it.
Btw, I'm about 85% of the way though GIA (Gemological Institute of America's Graduate Gemologist program) so when I say it's conclusively real, I'm 99.9% sure, but I'll still send it off to the GIA lab and they'll do x-ray fluorescence spectroscopy to confirm it. But I've asked several graduate gemologists and not one ever said: "use a magnet." That's neat.