If Steemit ever experienced such explosive growth as to propel it into the same league as Facebook, the massive price spike we saw earlier this summer would look like a small speed bump by comparison. $1500 per Steem... I'd be cautious about throwing around specific numbers, as that starts to create expectations in your mind and then sets you up for disappointment when those expectations are not met. But I agree there is a lot of potential upside. The one thing that concerns me a bit is how massively inflationary Steem is. I think a lot of people overlook that aspect when doing these sorts of growth projections. But hopefully the Steem Power "interest" we all get will be enough to counteract the inflationary aspects once prices begin to stabilize and we start seeing real growth. Here's to the future! ~raises an imaginary glass in salute~