the best paradox you've heard of?

Question

for me, it would be the paradox of Protagoras v. Euathlus.

Answer 1

the grandfather paradox

A man travels back in time, and kills his grandfather. Thus erasing his existence. Thus preventing the death of his grandfather. Therefore allowing himself to be born and repeat the cycle.

Answer 2

Actually, a fun one is a Sponge Bob paradox. Sponge Bob celebrated Opposite Day, a fictitious holiday in which people must do everything "oppositely". This includes (but may not be limited to) speaking only false statements.

Defining whether or not a given day is Opposite Day is extremely difficult, as "Today is Opposite Day!" is always a false statement. This is a sort of Liar's paradox.

Answer 3

The Liar's Paradox
"What I'm now saying is a lie."
If it's True then it's False, and if it's False then it's True.

*** I'd love to say one of Zeno's famous paradoxes is my favorite, but his have been demonstrated as invalid since the birth of Modern Philosophy.

Answer 4

Arrow’s paradox, demonstrates that no voting system based on ranked preferences can possibly meet a certain set of reasonable criteria when there are three or more options to choose from.

Because, it explains how BUSH became president.

Answer 5

My intellect is limited to a juvenile level - - - my favorite is the thought that while Explorer Robert Scott was dying in the cold of Antartica his wife was melting the ice with truly great explorer Friftjoh Nansen whose advice Scott has spurned.

http://www.nytimes.com/books/98/12/27/reviews/981227.27harrist.html
""There is something of a 90's sideshow to the debate over Scott. Huntford has charged that while Scott was in Antarctica, his wife, Kathleen, was having an affair with Amundsen's mentor, Fridtjof Nansen. Nansen was the Chuck Yeager of polar exploration. He pioneered skiing and sledging techniques and improved much of the equipment used on the ice. His renowned Arctic drift (1893-96) in the specially designed ship Fram (which he later reluctantly allowed Amundsen to use in the south) resulted in a dash for the North Pole that brought him and Hjalmar Johansen farther north than anyone had been before.

The allegation of an affair between Nansen and Kathleen Scott caused a storm in England, and Huntford repeats it in his new biography, ''Nansen'' (which has been published in England but does not yet seem to have an American publisher). Kathleen Scott met Nansen when her husband went to Norway seeking advice before leaving on the Terra Nova expedition. To little avail, Nansen urged Scott to rely more on skis and dogs. Early in 1912, Nansen was lecturing in Berlin. Kathleen attended, and she and Nansen stayed in the same hotel. Huntford says they slept together. After Scott's death, Nansen proposed marriage and was turned down. Preston says that Kathleen was visiting relatives in Berlin and that she was too sensible to have an affair. The books leave things there, but in England the controversy has turned on Kathleen's chronicling of her menstrual cycle in her diary; and the discussion, it seems, has come down to arguing about just what are sexual relations. ""

Joy ----------------------

Answer 6

I still like Zeno's Paradox.

Answer 7

for me, Terrorists attack some Hotel in Bali Island and the other place

Answer 8

Whoever is first among you will be last and the last shall be first. Whoever is greatest among you must be your servant.

Answer 9

What happens if you go back in time and kill your great grandfather?

Answer 10

"I have loved you far too much yet not enough."