I think we can safely assume that no one understands quantum mechanics.
The truth always turns out to be simpler than you thought.
I don't feel frightened by not knowing things.
It does not make any difference how beautiful your guess is. It does not make any difference how smart you are, who made the guess, or what his name is if it disagrees with experiment it is wrong. That is all there is to it.
What I can't create I don't understand
You see, the chemists have a complicated way of counting: instead of saying "one, two, three, four, five protons", they say, "hydrogen, helium, lithium, beryllium, boron."