This is why having BTC (or XBT) is good. However, remember that markets are vulnerable things and it may go down again. It's coming far still - but remember that it had a major dip previously.
http://www.xe.com/currencycharts/?fr...to=USD&view=1M
Earlier this year it was like USD$1,000 but dropped to the USD$900 range. It had gone lower as well previously, but again - it's coming very far.
Knowing the solution doesn't mean knowing the method. Yet answering correctly and regurgitation are considered "learning" and "knowledge".