This goes back to the first point. By adopting current blockchain tech RIGHT NOW for nation-scale projects, we will make it much harder for us to adopt better tech that arrives later. Today’s blockchains are the equivalent of 1980’s computing platforms. A lot of work is happening on consensus algorithms, quantum-safe cryptography , permissioned-but-public networks, on-chain governance, cross-ledger value transfer, formal verification, identity systems, zero-knowledge proofs, scaling / sharding, proof-of-human-work etc. By jumping on the bandwagon too soon, we will get locked into inferior technology.