Lisp also has a distinction between kinds of conditions but using the same underlying mechanism. You can have a plain signal which is informational. For instanc

Lisp also has a distinction between kinds of conditions but using the same underlying mechanism. You can have a plain signal which is informational. For instance in a data processing task you can signal your progress, and if there is a handler above it might update some GUI rendering of your progress or print out something to a terminal. If there isn't, nothing happens. For errors, you can have a handler which will select the restart option or otherwise handle the error, and if there is no handler you'll be brought into the debugger (typically, some modes of execution might cause a program to simply crash/terminate).