I don&#x27;t think this is the reason. You can do pretty much anything in Torch&#x2F;Theano. But, researchers are lazy and writing code is only a means to an end. They will shamelessly copy&#x2F;hack as much open source code as possible, so if a framework has some quick module for a desired algorithm, or if a researcher wrote their paper in some framework, and you want to build off that paper, then you&#x27;ll just copy that.