Even if we did as you say we do not consist of such unknown particles.
We already know what particles we consist of and can even predict those we haven't found yet and I am sure you would not enjoy the loss of integrity by being converted to some quantum energy spaghetti thingy in a rotating helix 12 dimensional environment to make use of a hypothetical FTL drive.
No kidding, our lecturer for applied maths already went though all this with us at UNI in the late 70's.
We baby boomers(and before) had already laid down the framework for everything we have developed in the 21st century.
What we do now is proving or disproving all that(mostly Einstein based) and sometimes turning what we already knew into something useful.
You can not even remotely compare that to the time before Leonardo Da Vinci designed a helicopter because the only explanation for Life the Universe and Everything back then was God.
I can only think of one mystery where we could still be stuck in those old days and that is dark matter.
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