I've slowly been making my way through Richard Feynman’s legendary Lectures on Physics.
Towards the end of the lecture on [electromagnetism](http://www.audible.com/pd/Science-Technology/The-Feynman-Lectures-on-Physics-Volume-15-Feynman-on-Electricity-and-Magnetism-Part-2-Audiobook/B002V8N1PK/ref=asearchc426srTtl?qid=1433991001&sr=2-6)_ Feynman takes offence to the use of the word inconceivable.
In a voice that has the zeal of a harlem preacher for physics; Feynman exclaims “I get very angry when people say to me it’s inconceivable”. “…because to be able call something inconceivable, you have already conceived it”.
“You’re uncomfortable with the idea, that’s a different issue”.
It can only be inconceivable if you refuse to think.