Short answer.
Only if you can make a use of it.
Long answer:
791 persons were killed by toasters in the USA last year, but during the same period only nine persons were killed by sharks. Now, that is useful knowledge. Unfortunately, this information has not made people more afraid of toasters than of sharks, even if they ought to be. It is probably only at the moment we are roasting to death because of a crummy toaster that we remember: that’s right toasters are dangerous. Many people prefer to die rather than replace their disillusions with facts.
