Particle physics is at a tipping point after the discovery of the Higgs boson in 2012. Investigating the only ever observed spin-zero fundamental particle is of the highest priority and will take many years. A detailed study of the Higgs boson is linked to solutions to some of the burning open questions of particle physics today, while at the same time, some of the other big questions the LHC was designed to address remain unanswered. At the same time, particle physics relies on large-scale...