This is bollocks. Typical clickbait title. There is still a lot of unsolved problems in physics, both experimental and theoretical. Particle physics is just one branch of science (and rather boring, if you ask me), popularized by CERN marketing, so people think new physics equals finding some new particle. There is a lot of interesting problems waiting for exploration. I will not even try to list them "unsolved physi…
> Unless Europe’s Large Hadron Collider coughs up a surprise, the field of particle physics may wheeze to its end