I have three questions:
1. Why would big banks & corporations implement Ethereum(open source) instead of creating their own copycat versions of it?
2. If the banks/corporations will create their own forks and standardize them will they have to use the current "ethers" as fuel or will they have their own "fuel". If latter then would in this case the value of the current decrease or even be rendered worthless?
3. VISA currently handles 2000 transactions/second. If Ethereum intends to be the base technology behind the "Internet of Everything" it should be able to handle millions of transactions per seconds. In this case the blockchain size would explode very quickly. Like +1TB/day. In other words: is Ethereum scalable for this amount of transactions?