Thats reality in two places at once, in case you were wondering.
The BBC really are excelling themselves lately, first it was Chaos, then last week the excellent “What is one degree” and tonight (on BBC2 and still on Iplayer for a month) for me the best of all, “What is reality“.
I had never seen anything so intriguing as the experiment of the laser sending single photons through the two slots. My first thought was that the interference pattern occurs if you remove the concept of time but that is only half the problem. This was such a simple demonstration of the observer being part of the experiment that I will never ever forget it, and perhaps never ever understand it.
That plus the reasoning behing the holographic universe with the possibility of a two dimensional event horizon holding all the information necessary for our 3D world to be projected. Wow, my head still hurts.
Never has a tagline been so appropriate for a TV show:
be warned: by watching this, you risk never seeing reality in quite the same way again
The only sad part of the show (spoiler alert) was the final idea that we live in a mathematical world and it will be the mathematicians that will solve ‘reality’ first. I dont agree and think that ecologists are almost there. My experiences of lifelong nature reserve managers and dedicated conservationists are that they hold the key to what reality really is. Ive seen that look of contentment as they go silent at every bird call in the distance, Ive recorded the sense of belonging of volunteer wardens in the reed beds of the fens and ultimately observed (hopefully without nullifying the experiment) first hand the use of dowsing rods in the woodlands of Kent to plot the interconnections between age old ants nests.