[whatshisface]

Each of these has a long answer, so I'll pick this one:

>[Chemistry]? Such as? What benefits do you expect to see?

Everything around us is made up of "molecules," assemblages of parts called atoms. Since it's not possible to manipulate the molecules directly in sufficient numbers (one pound of plastic is made of 2000000000000000000000 individual molecules), we have to assemble molecules en masse by subjecting them to processes that cause each step to happen to all of them at once. How does that work?

Let's say you have a molecule. Its structure will have exposed parts, and some bonds will be weaker than others. If you want to replace a part with another part (one step in the assembly of the final product), you might go about it by letting another molecule come along that has a greater affinity to bond with the location of the part you want to replace, and also has a tendency to be in turn itself replaced with the part you want to add. How can you know which molecule to use for this? You could run a computer simulation, apply a rule of thumb, or look it up in a book. In order to write the simulations, deduce the correct rules of thumb and write the books, scientists need to try a lot of combinations of molecules to see what parts swap with what other parts when they're mixed, and then think very hard about what's happening and why it is happening. This practice is known as, "chemistry."

Once a lot of the rules for a certain molecule are mapped out, engineers with an application in mind can go to the library and ask, "what sequence of steps will take me from available molecules to a molecule I can sell in a way that succeeds very often?" This is called, "industrial chemistry." If there was no library and no knowledge in it, industrial chemistry would be impossible. That is the relationship between science and engineering.

[naasking]

All well and good, but not an argument that the science here has to be publicly funded, and that a commercial research enterprise providing this library is not viable. The question was about what benefits come from the public funding, in particular, benefits that simply cannot be provided by a commercial enterprise or alternative approaches. You merely stated this was the case and I'm asking for the reasons.

Even supposing the costs associated with basic research can't be recouped commercially using existing technology, that does not suggest that alternatives are not possible. For instance, in a world in which this library was not created, perhaps the set of talented industrial chemists in our timeline would have studied physics or computer science instead and advanced quantum chemistry simulations that capture some, most or even all of the utility of this empirical approach.

I can look at what you describe and acknowledge that it's useful without automatically accepting that it's a) not commercializable, and b) impossible to work around, which is what you were implying.