The speed at which companies adopt a new innovation is said to be contained by the number of people who want or are willing to adopt it at any one time. 

Yet, there is a clear distinction between the time it took different innovations to be accepted by the majority of the population.

I always tell my students that the should't work on things they hate or with people they hate. 

Time is finite. Actions are valuable. When you get the choice, work with smart people on hard problems.