> without having to "attach a debugger" I can't see how a thing that is basically a debugger except it remembers the program state after each statement, can po

> without having to "attach a debugger" I can't see how a thing that is basically a debugger except it remembers the program state after each statement, can possibly work without "attaching" it, or running the program under the debugger, like you would with any other debugger. It's not like I can say, here, I've hit an error and now I want the history of the program's execution that was never recorded.