Also coming from academia, experimentation is not necessary for publication - both reviews and observational studies exist and are published in peer reviewed jo

Also coming from academia, experimentation is not necessary for publication - both reviews and observational studies exist and are published in peer reviewed journals quite often. In engineering (although I worked in neuroscience, I worked with many academic engineers and read way too many of their papers), whitepapers and concept papers are also often published - there's nothing to indicate here that this was a reviewed journal article. It's just a formatted PDF.