> For many tasks, validating a solution is order of magnitudes easier and cheaper than finding the solution in the first place. A good example that I use frequ

> For many tasks, validating a solution is order of magnitudes easier and cheaper than finding the solution in the first place. A good example that I use frequently is a reverse dictionary. It's also useful for suggesting edits to text that I have written. It's easy for me to read its suggestions and accept/reject them.