I mean my sources are the actual 5G Standards, the test equipment I've used, and my knowledge of cellular systems stemming from experience and and formal educat

I mean my sources are the actual 5G Standards, the test equipment I've used, and my knowledge of cellular systems stemming from experience and and formal education so yeah, I think it's a fair assumption that my knowledge is more than "some things I heard". My job does not depend on the success or failure of 5G, I don't know where you got that from.