[vesinisa]

Open source does not mean public domain. Open source specifically attaches limitations on how the code may be reused.

[elcomet]

There are no limitations on reading the code to learn from it.

[MontagFTB]

Perhaps the lawsuit contends that Copilot isn't in fact learning how to code, but is rather regurgitating information it has managed to glean and statistically categorize, without any real understanding as to what it was doing?