Why would you do that? Then, there would be nothing to be spent by you.
Just invest those you think you can afford and have something left for yourself and for emergency purposes. That is not how investing should be. It is suicide. Actually this is a dumb question but I think you need some light.
First I meant most ..
second.. it is profitable.. and I am just asking.. I thought that people grow their bitcoin real.. fast isn't they?
Actually, you don't have to put all your funds into bitcoin as of this days because we are not yet using bitcoin as a means of payment. So, if you put it all into bitcoin, you have no money to use for your daily expenses since almost all the stores and malls here are currently using fiat money and not bitcoin.