Not all technologies are equivalent though. Different tech can have different learning curves, and the shape/length of the learning curve for the same technolog

Not all technologies are equivalent though. Different tech can have different learning curves, and the shape/length of the learning curve for the same technology can vary for different populations or types of work. I agree that competent employees should be able to learn any technology you choose, given sufficient time and training. But if you can do so without sacrificing other important goals, typically a company will want to choose stuff that their particular set of employees can learn more quickly, in a less error-prone way, and with less training needed. To take an extreme case, if a particular interface requires strong working knowledge of Python scripting to use effectively, and your employees include a number of people who've never programmed before, then the time and resources needed to train them up may be large. On the other hand, if most of your employees are already Python programmers, it may not be an issue at all.