The only encryption scheme that is theoretically impossible to brute force is a one-time pad. However, with any modern cipher, it would take millions to trillions of years to brute-force, barring the discovery of catastrophic new cryptanalysis, or -- in some cases -- the invention of quantum computers. This is widely considered Good Enough by those who do not count witches or galaxy-spanning alien civilizations among their adversaries.

If you plan to use TrueCrypt, you have more practical concerns, like software bugs, or a compromised random number generator, or a home full of cameras, or getting kidnapped/arrested and politely asked for your keys.

Why do you ask?

Is it possible to encrypt a file so that it can not be brute forced?
If they are related, then what is his relation to Scott Summers and how does this explain the age gaps between Scott and Professor X?
