IME, for having used Julia quite extensively in Academia: - the development experience is hampered by the slow start time; - the ecosystem is quite brittle;

IME, for having used Julia quite extensively in Academia: - the development experience is hampered by the slow start time; - the ecosystem is quite brittle; - the promised performances are quite hard to actually reach, profiling only gets you so far; - the ecosystem is pretty young, and it shows (lack of docs, small community, ...) > what's stopping people from switching??? All of the mentioned above, inertia, perfect is the enemy of good enough, the alternatives are far away from python ecosystem & community, performances are not often a show blocker.