wow...what a display of knowledge. if you buy at .0001 and sell at .0003 that IS tripling his money. LOL! Buying at .0001 and selling at .0002 is doubling your money...but any experienced investor would already know that :)
Disclaimer: My Opinions are just that, opinions. I'm not responsible for anyones trading decisions.
He's right if, If 1 dollar to 2 is doubled. Then 1 dollar to 3 is triple your money. Your right if, If 1 dollar to 2 is 100%. Then 1 dollar to 3 is 200%