Not so much "magical," but this kind of comes across like tell me you never studied lab biology without telling me. It's very difficult to cut open all but the most trivial organisms without killing them and there isn't any other way to observe living systems while they're still alive. Observing them while dead doesn't give you near enough information to reverse engineer anything. We've had to solve for the cutting open without killing to be able to do things like open heart surgery, but it currently requires a team of people who trained for at least a decade and consent from the subject who generally isn't going to give that unless their life is already at stake.

If you can indeed just cross ethical boundaries, then sure, but mostly we've managed to purge the Josef Mengele's from societies with the technology to make this kind of thing feasible. The real world is at least not yet The X-Files where shadowy doctors in secret quasi-government consortiums can do basically anything to living humans in the name of discovery.

"Eventually" does a lot of work in your statement in that I completely agree, provided humanity lasts long enough. Give us another ten millenia and I have no doubt damn near every sci-fi scenario ever dreamed up that doesn't require superluminal travel will probably be doable. But that means nothing at all to something trying to launch a business in this century.