Carried by Silence, Explained: Ylva Onyekwere on how a group chat settles its plans by not replying, and why what turns up on the day is what somebody put their name to Resolving to Carried by Silence, Explained: Ylva Onyekwere on how a group chat settles its plans by not replying, and why what turns up on the day is what somebody put their name to…