1 plus 2 Equals?
The beauty of diversity is that it often yields greater benefits than the sum of its parts.
Take business enterprises for example. 2 contrasting enterprises, operating separately, may in fact find themselves benefiting from the lessons learned from each enterprise.
I always caution putting all your efforts into one project. Sure, many successful businesses are formed that way. But what are you missing out on? An could it have been quicker by adopting another project to run tests on?