No, I think that would be worse, and lead to degenerate equilibria.
It is a priority to avoid implementing Neuralese CoT on frontier models because that removes essentially all of our ability to interpret their reasoning.
It seems to me that, if we could get people to do that, then we wouldn't be in the current situation in the first place.
Is there a signal-to-noise problem if you don't do hyperpolarization, and just give someone an isotopically enriched molecule
Yes.
17O seems like a good try for that
MRI with oxygen-17 has been done. Here's a study from 1990. And here's a more recent paper which mentions some reasons it hasn't been widely used, including:
You didn't include the most important common aspect of cancers: It's very common for cancer cells to disable mitochondria-mediated apoptosis mechanisms.
The most important factor is probably that mormon women are consistently told by their community as a whole that they should marry a returned missionary.