many but it will make BTC expensive , because total investment / (total supply - total lost forever) is more than total investment/ total supply
this is correct. bitcoin's totally circulation amount is reducing day by day. specially after those so many altcoin projects and their ICO... thousands of BTC still frozen in ICO escrow addresses. thats also a reason of bitcoin price increase.
The reason why the bitcoin circulation is frozen is because many people are holding and waiting of the price to get a $1000 so they start selling, and the constant demand on it drives the price even high and the higher the price the more people greed and hold the bitcoin even more, but we will see a big change in the price when it reaches $1000 or beyond that also.
And we reached $1000, and people still do not want to exchange it (I'm one of them). This is the bad part: you never know when the price gets to the top, and we're all looking for it to go even higher so pretty much nobody will spend it right now except those that are scared that it'll go down. With every $10-$25 going up every day, you always want to hope it will not stop soon. I am also hoping it's going to skyrocket in a few months, but I don't know if it will really happen. If it does, then we will know that in four years the same thing will happen. The questions are: when will it happen and by how much will it go up?