On a hindsight, I'm thinking that this Bitcoin bullish trend or at least this spike has something to do with Ethereum fork, somehow its really pulling up the price of Bitcoin as well, so let's see how it pans out specially after the fork is completed. Sketchy as this point because we are still in the bearish sentiments, but we will see.
This bullish trend really may have something to do with ethereum fork. Eth/BTC pair has increased also recently.
This fork is important for the ecosystem, as it will be important for proof of stake implementation, which could be good for the whole ecosystem, triggering a bull run.
Many pow coins are already suffering lots of 51% attacks. POS could be a solution for those coins, and ethereum solution to use POS may be used by those projects.