Schrodinger's cat - an explanation for the pub

Wednesday, September 24. 2008
One of the strengths of Quest is the Forum community we have. Over a 100 people visit it each day and posts cover an amazing range of topics, from client support, to business ideas, to upcoming training events, to funny YouTube videos. Tom Sedge is one of our top contributors who posted the following in response to a request for help in understanding the classic thought experiment known as Schrodinger's cat.

We thought it was too good to deprive the wider world of:


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Einstein and my Nan

Friday, September 12. 2008
The other night I heard a quote on ER that I instantly loved. It originated from Einstein - the man was a machine for great quotes - and goes like this:

“Reality is the most persistent illusion.”

That’s been rattling round in my head ever since. Then, on Springwatch (I don’t watch that much TV really, honest) the host, Bill Oddie, said how many people who say they’ve seen a ghost when walking down a twilight country lane have actually seen a Barn Owl. By coincidence we saw a Barn Owl near our house a few days later, and his words came back to me. We did sight it in broad daylight, but still it seemed amazing that a Barn Owl could be construed as being anything else; particularly something as unlikely as a ghost.

My Nan went to her grave swearing she’d seen a ghost, down a country lane, funnily enough. Did she really see a Barn Owl? I’d say ‘probably’ because I’ll take something that exists over something we haven’t proven exists most times, but that wouldn’t matter to my Nan. Her reality that ghosts exist remained a persistent belief, steadfast in the face of my scepticism.

Now, I fully accept I could be wrong, and my belief that ghosts don’t exist is actually the illusion here, but I’d like to leave that argument for another day. What I’m more interested in is the Barn Owl effect on our daily lives.

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