Some human inventions are not strictly necessary from a philosophical perspective, but are nonetheless virtually inevitable as civilization grows and develops nearly as a law of nature.
Among these are:
- fire
- the wheel
- levers and simple machines
- money (abstracted trade)
- written language
- ledgers
- cryptography
- telecommunication
- digital records
- cryptographic digital ledger
That last one is somewhat hard to justify for the uninitiated, but once you know, it is hard to think of it as anything other than inevitable.
