irrational

Yes: it would be possible for you to choose the sandwich
instead. By far the likeliest outcome, though
would be that you (since you are
the same thing with no changes within it),
would pick the same thing for the same reasons.

The chocolate bar. Or the ice cream.

Perhaps your eyes would light on something
else while you ponder, and you’d remember
a forgotten (unpleasant) story about
that brand of chocolate bar, or
the type of food in the sandwich.

And so, choose differently. Not enough

to put you off for life, but
a momentary aversion. You could
choose differently. Possibly you

wouldn’t even remember why.