When bitcoin reaches a certain price, and satoshis equal 1 cent, won't we need more decimal points?

for example at $1 million dollar BTC, the market cap is around 20 trillion dollars. there is over 100 trillion dollars of cash/savings/checkings/physical money in the world. at 20 trillion dollar market cap, 1 satoshi equals 1 cent. won't we need more decimal points if bitcoin is to capture not just the gold market, but the money (cash/savings/checkings/physical money) market? via /r/Bitcoin http://bit.ly/2BYmYCp