thanks for sharing...
what got my attention in the overview was in 2010, when A programmer named Laszlo Hanyecz, who lived in Florida pays 10,000 Bitcoins on a pizza, that was originally bought from Papa Johns by a volunteer in England. The exchange rate at the time put the purchase price for the pizza at 25USD. comparing the exchange rate between 2010 and now, we can see bitcoin has come to rule the global currencies.