Adding a third person to an encrypted conversation seems like it should be simple. It isn't. The cryptographic properties that make 1:1 messaging secure — forward secrecy, post-compromise security, deniability — become significantly harder to preserve as group size grows. When Signal introduced group chats, they faced a problem that doesn't exist in 1:1 messaging: how do you efficiently encrypt a
Ages ago when CSS grids came with a repeat() function to simplify defining repetitive columns and rows, I was not alone in wishing for this function to be made generic and work in any context. After seeing Wes Bos on BlueSky wishing for this exact concept, specifically for repeating segments in a shape() definition, I chimed in with my +1's on making repeat() generic across CSS Without delay, @no