It should read like this (?):
A college student at a recent football game challenged a senior citizen
sitting next to him, saying it was impossible for their generation to
understand his.
"You grew up in a different world," the student said ... loud enough
for the whole crowd to hear.
"Today we have television, jet planes, space travel, man has walked on
the moon, our spaceships have visited Mars, we even have nuclear
energy, electric and hydrogen cars, computers with light-speed
processing, and, uh ..."
Taking advantage of a pause in the student's litany, the geezer said:
"You're right, we didn't have those other things
when we were young so we invented them you little !!!!!