1. In my opinion, Blockchain is innovative in its own right. It has its weak points, obviously, and I would say it's more expensive than traditional ledgers, but it's also more efficient and much more secure.
something isn't innovative because it is innovative. how is blockchain more efficient than traditional ledgers? which traditional ledgers? i would argue that a piece of paper is more efficient in beeing a ledger than a blockchain
(of a product, idea, etc.) featuring new methods; advanced and original. [Oxford English Dictionary]
tending to innovate, or introduce something new or different; characterized by innovation. [dictionary.com]
now you are saying blockchain is not innovative, cause blockchain is nothing new, it exists since around 1991
2. This is because it is decentralized, encrypted, and cross-checked, and thus almost 100% tamperproof.
decentralization doesn't mean security. are you sure the blockchain is encrypted?
Yes, I'm sure. Blockchain consists of transactions that are secured with hashing and encryption techniques.
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which encryption techniques? i am pretty sure nothing on the blockchain is encrypted