Yes, ultimately it's just a really good statistical model. But it does a really good job, and it's not just matching code it's seen before. You can use any var

Yes, ultimately it's just a really good statistical model. But it does a really good job, and it's not just matching code it's seen before. You can use any variable name. You can do this in a weird programming language which uses weird symbols for assignment and calls. copilot will probably see though it and give you a good prediction. You can probably even swap west for not_east in code elsewhere in the file, and it will manage to predict that you also want not_east here. And I guaranteed nobody has written code like that before.