A lot of experimental and applied physics operates this way. If you are synthesizing material, for example, it takes a lot of time and effort to get high yields of what you want. Before that your processes can be very probabilistic.
In fact, just finished listening to a talk where a experimentalist was talking about how to get the fabrication yields of superconducting qubits from currently low double digit to 99.99+.
Biology is messy at a macro level is all I'm saying. I don't need a hundred people butting in saying "butt aschully phsyix and code is also messy and harder at a quantum level." I know. We know.
In fact, just finished listening to a talk where a experimentalist was talking about how to get the fabrication yields of superconducting qubits from currently low double digit to 99.99+.