picture an infinite string of 1’s. there’s no first 1 followed by infinite 1’s. no matter where you look at this number there’s an infinite number of 1’s before and after the 1 you’re looking at. let the addition of this infinite string of 1’s to an infinite string of 2’s equal an infinite string of 3’s. what then does the infinite string of 3’s plus an infinite string of 7’s equal? asking for a friend.