Working with agents right now is like working on huge legacy C++ codebase (feel free to insert your nightmares). You change 10 lines of code and then wait 20 minutes before it compiles and runs tests (or write prompt and wait 20 minues for code). External distractions and huge waiting times breaks your flow. Working long time in the flow is what makes mythical 10x programmer. IMHO 10x programmers are not superior in skill but in the ability to stay focused. Making agents faster is more important for people who care about the code than for vibecoders.