Silly question, but kind of curious ,is the current increase is digitlization of china's militarty revolution in equipment and tactics related to the amout of effort they spend in hacting US goverment and commercial systekms
That's a loaded question, and perhaps if you want to focus your question to be more specific it will be easier to give a more specific answer.
In fact it might be better for you to first write about what you think the primary drivers of the Chinese military's modernization (which has been ongoing for decades, with different phases) might be first.
This is off topic of course, and tbh I'm not sure how the discussion in the J-15 thread even reached this topic of general technology rather than J-15, but whatever.