Don't you just hate it when you see a promising blog entry title that gets those synapses excited, but you end up being dismayed by the post's content? You know the kind I'm talking about... This morning's annoyance had the following come-on: "Question For Everyone, Please Take The Time To Answer, No Cheating..." blah blah blah.
Fine. Groovy. Whatever. IMO, stuff like this should come with a disclaimer at the top of the entry which states that the person who posted a pop quiz without also providing the answer is only making a feeble attempt to get repeat blog traffic. The disclaimer doesn't have to be fancy. One simple word will suffice:
Whoa. I may have possibly just found the only valid use for the dreaded "blink" tag. ;oD
Question: (+ ∞) + ( - ∞) = ? ("positive" infinity plus "negative" infinity equals?)
Answer: nothing
"Zero" is an incorrect answer because zero has a fixed mathematical value. Therefore, zero is still "something."