I solved today's Redactle (#246) in 19 guesses with an accuracy of 73.68%.

There was a particular prefix I thought the title had, but I had dismissed it after my third guess (which used it), only revisiting other words in the subject area that use that prefix after filling in a couple of key words.

@mahir256 I too guessed superconductivity long before the real title 😔
@LucasWerkmeister my guess was actually "supersymmetry" (since it too has 13 letters)
@mahir256 oh, I see. when I thought of superconductivity (this was just after energy, so I already had “without … energy”) I just tried it instantly without counting the letters ^^