"The speaker Joao Magueijo, is a Reader in Theoretical Physics at Imperial College, London and author of Faster Than the Speed of Light. He opened by explaining how Einstein's theory of relativity is the foundation of every other theory in modern physics and that the assumption that the speed of light is constant is the foundation of that theory. Thus a constant speed of light is embedded in all of modern physics and to propose a varying speed of light (VSL) is worse than swearing! It is like proposing a language without vowels." http://www.thegreatdebate.org.uk/VSLRevPrnt.html

Joao Magueijo effectively says that, if the speed of light is variable (it is!), fundamental physics, entirely predicated on Einstein's false constancy, is long dead. Things will have to restart from scratch. See a possible restart (Einstein-free physics) in a series of tweets he https://twitter.com/pentcho_valev

Pentcho Valev