1. It’s not a single interested party. What I called military studies were by at least 3 completely separate groups. The Navy, the Air Force, and NASA. There have also been studies by the EPA, and “disinterested” academic groups.

2. There aren’t dozens of positive studies. There are a handful by 1 or 2 research groups.

There was a meta analysis in 2020 looking at only the academic literature (so excluding military studies). It found that for every positive result there was at least 1 negative one.

Here’s a good walkthrough of that paper.

https://www.construction-physics.com/p/we-need-more-research...