That's right, the bitcoin offer is limited. Plus some of the bitcoins are lost forever. But all this does not mean that the price of bitcoin will go up in the near future. So far, the decline continues...
Why are you thinking so negative? Bitcoin is going to increase in value by the end of the year and we all know that this happens every year. The mid of the year is really tough time for all the crypto currencies including bitcoin. As far as the lost bitcoin are concerned, they could not be tracked down but the limited number of bitcoin makes bitcoin prices go so high when all would be mined out. I have positive hopes.