A long time ago, I trained as a Physics teacher and, in doing so, came to appreciate that, to be a good physicist, I believe you must also be a good philosopher. In fact, much of what used to be called natural philosophy is now regarded as physics.

One physicist who is regularly quoted as a philosopher is Albert Einstein – if you don’t believe me, enter “Albert Einstein quotations” into your favourite search engine. One of his most quoted (and, often, misquoted) statements relates to his definition of insanity – doing the same thing over and over again and expecting different results. But I prefer to use a variation on the same theme, that is – if you always do what you’ve always done, you’ll always get what you’ve always got. In other words, unless you do something different today, tomorrow will be exactly the same.