Popper, in contrast, held that the Frankfurt school view was historicist ideology failing to see that any attempt to cause a total change of society (i.e., revolution) leads to violence, and that society should better be changed step by step (by reforms) to solve specific problems and abolish specific evils. According to Popper, individuals, including scientists, are free to decide, and are perhaps restricted by their social existence, but not totally determined by it. Changes may then look ineffective and very slow, but will accumulate over time. Popper thinks it is the lesser evil compared to violent revolutions, since such reforms can be undone if they turn out to only make things worse, while revolutions usually lead to lengthy periods of tyranny. Thus, for Popper, the method of reforms should be preferred.