I just wonder what push Bitcoin so high in the past few months. All we know in history which could affect the currency value are supply and demand and interest rate.

Bitcoin is highly consumed in deepweb and today there is still only few sectors accept.
So I think the only factor making it surge would simply the investor believe in its value and those who buying investment product with eyes blinded.

Anyway it is expected that the price will go one fold further in next year.