Higgsplosion — a dream of a perfect theory. A semiclassical realisation.

I will consider multi-particle production rates in a weakly coupled quantum field theory with a massive  elementary Higgs-like scalar. The theory enters the Higgsplosion regime when the n-particle production rates for n>>1 become unsuppressed at sufficiently high energies and multiplicities. I will introduce Higgsplosion and discuss its conjectured interpretations and  consequences for the theory. In the second half of the talk I will explain how Higgsplosion can be justified using semiclassical methods, and present conclusions.