Once the Higgs boson was detected, the Standard Model was pretty much complete but there were some nagging loose ends that still hadn’t been tied up.
The question that really blew physicists minds was, “Why is the cosmological constant 127 orders of magnitude smaller than the theoretical calculation?”.
One solution that worked perfectly on paper was the notion that there was another symmetry similar to those of the Standard Model particles but acting between fermions (massive particles with spin 1/2) and bosons (massless particles with spin 1).
If every fermion had a boson super partner and every boson had a fermion super partner, the combination of their quantum states would almost zero out the cosmological constant to the value observed. The problem was that nobody had ever seen these super partners in existing experiments, so the expectation was that, like the Higgs, we just needed a more powerful tool to see the lightest ones to confirm the theory. To everyone’s disappointment the LHC was not able to confirm supersymmetry (and advance string theory) at least so far.
I don’t see this as a problem, it just eliminates one possible explanation.
Hossenfelder should consult with Sherlock Holmes who knew that deductive reasoning works by eliminating the possible so that what remains must be the truth.
No.
That is the risk when using byte arithmetic.