[snarks_when_bored]

They're looking pretty hard for ways to test Superstring Theory. And there are many critics of the field, a loyal opposition who think that physics ought to be testable. But what's testable now and what might be testable a few years from now are very different things. We're still on the way to something, but what it is we don't quite know (kind of describes life, too, huh?).

[beezdotcom]

Yeah, but I want to differentiate between things that we know HOW to test, but CAN'T until we achieve some new technological milestone (like a more powerful supercollider, or probes that are light-years away), vs. those things for which we can't even devise a good gedanken experiment to validate/invalidate.