Very nice article about Ethereum scalability nodes problem which is coming soon. It seems that writer is Bitcoin maximalist, but although there are some facts, which can really hurt Ethereum project. Ethereum-blockchain size exceeded 1TB, what is very nice to see how is growing usability, but on the other side this is very big issue for Ethereum nodes, because some of them can not be fully synchronize. In future if developers won't make important change, more not-synced nodes will grow and trust of whole system will go down. Without fully synced nodes, hackers can propagate false informations and destabilize the complete Ethereum network. Trust, but Verify.