Yeah, ecash is IOU-BTC tokens rather than funds.

denationalized

What I am trying myself when is about ecash is to avoid saying "funds".

Ecash is all about tokens, not real funds. Funds are used only when you "redeem" those tokens into a LN wallet, out of the mint.

I know, will be hard to remove from our mind this term.

lightning

Nutshell wallet - backing up just the mnemonic phrase is enough to backup funds.

Yes is very interesting.
What I am trying myself when is about ecash is to avoid saying "funds".
Ecash is all about tokens, not real funds. Funds are used only when you "redeem" those tokens into a LN wallet, out of the mint.
I know, will be hard to remove from our mind this term.