TDD is one tool in your toolbox. You can easily solve problems like this one: https://itnext.io/you-dont-know-tdd-691efe670094 https://itnext.io/you-dont-know-t

TDD is one tool in your toolbox. You can easily solve problems like this one: https://itnext.io/you-dont-know-tdd-691efe670094 https://itnext.io/you-dont-know-tdd-691efe670094. However, there's a myriad of other problems TDD doesn't help you, like when you need to design a system beforehand or you want to make an educated jump to a solution that's good enough and you already know it.