Quote from this article https://blog.colony.io/why-a-post-hard-fork-ethereum-will-be-more-valuable-abc35bbf6e98#.2jfczxeho
Blockchains are not immutable. If they were, we wouldnt be having this discussion.
(Maybe I misunderstood what immutability of a blockchain means , so please correct me if wrong.)
Doesn't forking an existing blockchain actually create a "new" blockchain with similar past and different future?
The "old" one still exists with unchanged parameters/fundamentals and with enough support from miners it can be kept alive.
Yes sir. See the current dillemma with bitcoin classic/core. Two completely different block chains, hence the collective butthurt of the community as we struggle to pick a side. With that being said, really doesn't matter. The Chinese farms dictate which we will adopt. We lost our early lead on mining and are subsequently at the beck of those that currently control it.