Side note, just a couple decades after the Arrow, Canadian researchers once again lead the world, but this time in the field of AI, specifically deep learning. However, what happened after that? Google hired Geoffrey Hinton, and the industrial might of the US took over.
Perhaps this is inevitable given that we are much weaker economically compared to the US.
However, one last thought is that, aerospace vs software is not the same. For aerospace, yea I think you need a giant super power of a nation to keep it alive. However, software can be built by one guy in a garage. I'm not sure why Canada just let its dominance in AI "slip away".
Also side side note about Avro Arrow, is it just a weird naming coincidence that the two Apache projects exists: Avro and Arrow? I think Avro is named after the original British Avro company. However, I don't think Arrow has anything to do with aviation.