See this is where I am confused, one person says it will never be or cannot happen, one says it is a duplicate that needs separating, one it will over take and BTU will be BTC and so on....
Lets not argue for a moment, let's assume that BTU is successful, what exactly does it mean, plain English please.
Assuming that BU gets support of 75% of the hashing power and activates, it will then control the longest chain. A few things could happen:
1.) Everyone just gets on board, -- the rest of the miners, merchants, end of story...
2.) 25% still mines the old coin....Now they are 2 coins.
if #2 happens, then you have three possibilities based on what the other non-mining investors and merchants do:
2a) If merchants and payment processors decide they don't like BU, and they are going to stick
to Bitcoin the way its been (with the 1mb block), and investors decide they don't want the BU coins, then
BU becomes worthless and miners will give up pretty soon on despite having initially supported it.
2b) the opposite of 2a: investors and merchants no longer support the old coin, and the 25% mining power
quickly gives up.
...Or:
2c) SOME investors and merchants will support the new coin, some the old coin...and now you have
2 separate currencies much like happened to Ethereum.
If this last possibility happens and you own Bitcoins, you will now have double the coins.... one set
of each (one on each blockchain)... You could then speculate on which will dominate by selling
the coins you think will become less valuable...or you can play it safe and just hold your coins
until the situation becomes more clear.