You can think of blockchain as a spreadsheet if you like, or a database, or a General Ledger but all these metaphors lose the point of consensus almost straight away. The blockchain was special for one thing only: it resolves the order of entries without an administrator. That’s what sets it apart.
As the writer says, we’ve been programming cells in spreadsheets for decades. But call macros “Smart Contracts” and everyone gets in a spin.
Glad to see the writer calls out the blockchain dot-com-like hysteria later in this article.