Any actor who is being honest will admit there's always a small or large part of the real you in every character. It's impossible not to have that.
Don't confuse hypothesis and theory. The former is a possible explanation; the latter, the correct one. The establishment of theory is the very purpose of science.
I was always playing the Hammond Organ back to front even during the days of the Nice, going back to 1968. Really what I was doing there, was choosing notes at random and trying to make some sense of them, improvising back to front.