> In fact, how people can debug large existing codebases without a debugger is beyond me. Some people work with systems that operate in real time (networked sy

> In fact, how people can debug large existing codebases without a debugger is beyond me. Some people work with systems that operate in real time (networked systems are usually in this category) or otherwise can't be instrumented (embedded systems?) and cannot be replayed at will. Not everything is a desktop application or simple CRUD.