  Rather than attempting to summarise the full spectrum of recent advances in
Beyond the Standard Model (BSM) theory, which are many, in this talk I will
instead take the opportunity to focus on two frameworks related to the
hierarchy problem currently receiving significant attention. They are the `Twin
Higgs' and the `Relaxion'. I will summarise the basic underlying structure of
these theories at a non-expert level and highlight some interesting
phenomenological signatures or outstanding problems.
