Not really a hard technical limit but it’s more UX friction. Clients could let you hot-swap keys in the composer and sign with whichever identity you pick. Just needs smart key mgmt + smooth UI, the protocol allows it

Should be like swapping masks at a party 🎭 ....same dance floor, just a different face. The keys can handle it, clients just need the flow

Bitcoin signs blocks every 10 mins, but I still can’t sign a note with a 2nd key in 10 secs 🤦‍♂️ pure UX gap 😝😝