For computers built in the late 80's and subsequent couple of decades, OOP was a fine abstraction that furthered software development in many ways. When you ha

For computers built in the late 80's and subsequent couple of decades, OOP was a fine abstraction that furthered software development in many ways. When you had one thread running your whole program, it was okay to have mutable data all over the place with complex interactions between parts of your program. Developers could keep it all straight in their heads, so OOP added some structure that was very helpful. Now that computer hardware manufacturers are moving toward providing more CPU cores that allow for higher degrees of parallelization within single applications - development strategies that make it easier to keep parallel processes from working against each other are becoming more preferable. Looking at OOP's success as binary is inappropriate. OOP was the right tool for the time and hardware that was available. It served its purpose, but unless its shortcomings on modern and near-future hardware can be addressed... it will fall out of vogue and be regarded as the wrong choice to make.