fungibility is when all units are indistinguishable between one another

i.e you melt a dozen 24 carat gold coins, you can recreate them into a new set of coins

i've been censored numerous times now because i use coinjoin - that means there is bitcoin & tainted bitcoin. only a small percentage of supply is coinjoined.

lightning & onchain are not indistinguishable either, sure 1 sat is 1 sat, but they make different history on the ledger

the only thing that comes close to fungible as a cryptocurrency is monero - and the anon set is due to massively increase with upcoming upgrade.

also, with these high fees it's becoming too costly to use coinjoin / open lightning channels on bitcoin for the average user.