If there are four of you on a tiny island and you're not running an informally communist society, something's wrong.
Possibly what's wrong is that one of you is a libertarian.
I'm no purely being flippant here - four people are going to be so inter-reliant and form such a small, tigh-knit group, that keeping track of balances and debts is likely to cause more problems than it could possibly solve.
I agree. You're more like a family at that point than four LLCs.
Then again, I wonder how many people reading that blog post and nodding along are already sketching out a brilliant idea to bring this back home, and have their spouse and kids get on the handwritten blockchain wagon.
Possibly what's wrong is that one of you is a libertarian.
I'm no purely being flippant here - four people are going to be so inter-reliant and form such a small, tigh-knit group, that keeping track of balances and debts is likely to cause more problems than it could possibly solve.
This is a situation for trust, not currency.