Simple, Your BRAIN can only process so much, so the signal to your vocal cords and tongue slow and You mess up Example:
SAY PETER Piper picked a pack a pickle peppers 8x
Did you mess up? I bet so
also here an easy one. RUBER BABY BUGGY BUMPER
D. It expands and contrasts
Hope this helps!!
You asked which theory is most widely accepted describing the formation of our universe? …. Big Bang Theory