Let's be honest: it's used today because it was used yesterday, and there is a lot of useful legacy code. Not many like plotting with root, or faffing about wit

Let's be honest: it's used today because it was used yesterday, and there is a lot of useful legacy code. Not many like plotting with root, or faffing about with memory allocation. The reason it started getting use is that in the 1990's, when the current generation of experiments were starting up, C++ was hot and Fortran was not. PAW was old and in Fortran and so the young ones wanted to work with the new hip ROOT instead[1]. [1]: https://www.quora.com/Why-does-CERN-use-ROOT/answer/Mario-Alemi https://www.quora.com/Why-does-CERN-use-ROOT/answer/Mario-Al...