The example you're referring to isn't even in the millions - it was around $70K! Ireland spent $163 Billion on Amercian services because of a good, long standing relationship between the two countries.
Contributions to global organisations is what is known as "soft power" - for example, the only time NATO article 5 has been invoked is by the USA after 9/11
And guess what - every other country stood up and came to America's defence. In the grand scheme of things, it's a pretty good deal to spend a few million for the billions you get back in cooperative agreements with the rest of the world.
What you want to maximise is overlapping surface area and glue.
How you get there will depend on your CAD skills.
One option is to print a 3rd sleeve that you push both parts into. Another option is to cut a 1.5mm deep slice out of the top face of the left part, and a 1.5mm slice out of the bottom of the right part so they slot together with as much surface area overlapping as possible.
Since this is a science community, can I ask what studies directly link these microplastics to the specific adverse affects?
I see a lot of "BPA microplastics are hormone disruptors" and "microplastics found in placentas!" Etc ... ok, but are they the same microplastics in these studies?
It sounds like when everyone puts scarequotes around "chemicals"...
Tegmark's MUH is the hypothesis that our external physical reality is a mathematical structure.[3] That is, the physical universe is not merely described by mathematics, but is mathematics — specifically, a mathematical structure.
Look, I only heard about this concept, so maybe there's more to it, but branches of mathematics are just a set of rules that we create.
Sometimes these rules can be applied to real systems, in our reality, and that helps to describe and understand the universe.
But it's totally possible to come up with infinite nonsensical, useless mathematical systems that have nothing to do with the universe. The existence of these doesn't mean that we have or could rewrite reality.