> Ok, but isn’t the premise of this line of reasoning flawed? We didn’t know what our understanding of electromagnetism and quantum mechanics would enable in advance.
No, but we did know what we had large gaps in our knowledge, even of things at close to human scales -- before those theories were discovered and worked out. It was then reasonable to expect that filling in those gaps might lead to new technology and applications also at human scales. And I'm not talking about direct applications, I'm talking about applications decades or more out -- but the fact that the energy scales were somewhat close to home meant such thing were possible.
From what we know about the current frontier in particle physics, nothing informs physics at human scales. This is a strong statement -- its many many orders of magnitude off in energy scale.
It could be that we're wrong about some that (and that's one of the reasons I think this research should continue) -- but it's not something that should be reasonably expected.
> Science is always just exploration, and the outcome in terms of tools is always incidental.
My comments were about how the science should be presented to the public in an honest way. And I think trying to sell people on science by quoting past developments that are quite different in character and expectations to what is being done today is dishonest and is a disservice to everyone involved.
The point that should be made is exactly the one you make above: science is about exploration -- full stop -- and we shouldn't make exaggerated claims about applications to sell people on it.