[kordlessagain]

I said may be. What is impossible is to negate a "maybe". While there may be physical limitation now, that doesn't mean there will be later. New understandings of physics may change that, as would new technology that wouldn't normally be researched along a given path to an idea or need (like a very small machine operating on very small samples). For example, we may find a way to use neutrinos to detect things we didn't know we could detect before, because someone theorized that doing XYZ with neutrenos allows us to detect them.

That "discovery" (hypothetical) could then be repurposed to build a small machine that does what Holmes thought it could. Not that she thought about stuff like that - she was designing their stupid building instead.

The point I was making was that not knowing now and then saying will will know later at which point "someone becomes right" is a biased way of thinking. My point was not to say there will or won't be, which is why I used "may be".