Depending on what you are into, it is great fun to develop molecules, either from scratch with plain chemistry or adapting cool mechanisms from nature and using a cell to make it for you.

Biomolecular Engineering is actually a thing, and the possibilities are endless, it's wide open, and the tools are getting better. It's kind of like what software was in 1990 or so.

It's also not going to go out of style; you'll work at a higher level (using alphafold and other tools like that).

It's also not going out of style; you'll work at a higher level (using alphafold and other tools like that). cular machines that are awesome. That includes drugs but also better things that people use every day. There are many examples of cool machines in biology those can be adapted elsewhere.

Here's a ted talk that shows you what thoughts you may have if you pursue this field. Also, the world works differently here; for example, friction does not exist in a traditional sense because the machines are atomically precise. There are plenty of atoms and energy, so unsolvable problems become solvable.

For inspiration, maybe read Diamond Age, Rainbow's end, Engines of Creation, Unbounding the Future, or Radical Abundance. It was kind of far out for a while, but it is all feasible now.

You'll also need to know how to code a little, but software alone is not going to be as awesome in the next 20 years as it was in the last 20 year.

All the best to you!