There are currently 251131639 sequenced proteins in UniProt[^1], so, that's a very lower bound on the number of things a modern biologist has to amuse themselves with. Many still consider biology as the study of each individual biological organism, system, or protein. But since there are so many of those, I argue that biology must become a science of methods of understanding, and not a science of bare understanding. It's the difference between a company that produces mining machinery and a company that sends miners with pick and shovel underground. And that transformation is going to require for biologists to become system scientists and engineers, steeped to the brim in math, biochemistry and computer sciences.
[^1]: https://www.ebi.ac.uk/uniprot/TrEMBLstats