Every time I read or hear someone say “I want to make a difference in the world” with no real qualifier denoting WHAT they want to affect and HOW, I feel an urge to toss my cookies.
HITLER “made a difference in the world,” So did STALIN, and POL POT, and RACHEL CARSON and MOHAMMED — mass murderers one and all.
What KIND of difference do you want to make to WHAT set of conditions? If those bare parameters aren’t defined, then please just stay home and sit on your butt. That way, the “difference” you make will at least not actively harm others.
The only difference I’m really interested in involves an operation with a minuend and subtrahend.
Math is fun, isn’t it? ? And sometimes, it is the simple things. . .