What I'm on about is that he isn't a primary source. Even talking heads are not credible if they fail to provide sources. I wouldn't trust a quote from the president even. Why? Because people have a tendancy to start by being truthful, growing an audiance, and then using propaganda to weaponize that audience. Its the reason you'll see lots of maxis say we need to stop with hero worship in our communities, because they will all betray you.

Really whats most important is the fact that Walter Bloomberg did not do the study on GDP, the Bureau of Economic Analysis did which is part of the US department of commerce. Sometimes your source will use "true inflation" adjustments and you can read how they came to a different inflation number and decide for yourself if you agree with that adjustment or if it doesn't make sense at all, because this new non government number then gets used to show different inflation adjusted statistics.

Basically, what I'm on about is to think for yourself.

If we think about a post on SN as a service to everyone, finding the primary source is probably best.

It's kind of like when people post links to links, or links to stories that are retellings of stories that are better told elsewhere. We all want the best source of the information we're consuming - if possible.