First of all, the current market cap is about 536 million $USD, and in order for reddcoin to skyrocket and be worth 1$USD it would mean that the most known social media out there integrate reddcoin. This would mean that facebook, twitter, instagram and many more implement reddcoin in their app, which is highly improbable...
I do wish you that reddcoin hits 1$USD though!
I agree, I don't see how Reddcoin would reach $1. But the chrome extension sounds very interesting.