What does "chain abstraction" mean to you?

Is it being able to move between chains with very low friction?

Is it completely hiding the specifics of which chain you're using?

Or is it leaning into the distinction, but letting you use one chain to trigger actions on another one?

I have my take; curious to hear yours

#1 and #3. Abstracting away asset bridging and cross-chain messaging but still giving me clear indications of which chain I'm interacting with and allowing signatures from a wallet that doesn't require any context switching.

Not personally interested in #2.