Debuggers are very powerful tools and if they&#x27;re worth anything, they&#x27;ll have a learning curve.<p>For example:<p>- When debugging multi-threaded code, you can test interlace events by manually pausing executing of certain threads at certain points.  I&#x27;ve used this many times to manually reproduce a rare race condition.<p>- Tweaking a conditional breakpoint at runtime can be easier than rewriting code and re-running.<p>- Visual Studio has &quot;tracepoints&quot; which are like inserting a puts&#x2F;printf statement in the code, but allows you to output things you might not easily want to write code to do like the current callstack or function name, e.g. &quot;Print the callstack when I enter this function every 100 times I enter it&quot;<p>- Poking around in memory can reveal things you wouldn&#x27;t have thought to output, or is invisible in output, e.g. discovering a BOM in one string and not the other and having that be the cause of a comparison failure or a different path through the code than you think it should be taking.<p>- Trying to understand control flow when exceptions might be thrown or assertions might be triggered just isn&#x27;t as easy with puts&#x2F;print.  You&#x27;re likely to make a bad assumption.  Understanding exceptions and how to make your application easy to debug is definitely a skill that begins at coding, not opening the debugger.<p>If you don&#x27;t think you &quot;have to learn a debugger&quot; you&#x27;re missing out on a lot of opportunities to be better at finding bugs.