You are correct that the delivery environment is more different than the language used; similarly, different problem domains have far greater differences than do programming languages. In fact, as many have already noticed, most programming languages are extremely similar. From Fortran to Python, there's a very small difference if you're familiar with languages that are outliers: ones like Forth, Lisp, APL, J and K.
This is probably not unrelated to the fact that progress in programming languages has been glacial compared to progress in hardware.
In 2012, Jain and several colleagues used a set of mugshots from the Pinellas County Sheriff’s Office in Florida to examine the performance of several commercially available face recognition systems, including ones from vendors that supply law enforcement agencies. The algorithms were consistently less accurate on women, African-Americans, and younger people. Apparently they were trained on data that was not representative enough of those groups, says Jain.
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