After 4 warm days we are back to normal. Actually it is a beautiful spring day, with bright blue skies and just a few fluffy clouds, albeit some 10 degrees cooler than yesterday. But apparently we are in for a cooler than usual summer [source?: Ed}, thus perpeptuating the sequence that begin with the dismal 2007. Is it a coincidence that this news matched yet another sharp decline in the world's stock markets? Could it be that the run of disappointing summers (in the UK at any rate) in the past four years is the cause of the financial turmoil which also began in 2007?
Some may blame sunspots, long held to do nasty things to agricultural cycles. Others might conjecture that magnetic anomalies are interfering with human rational and emotional systems. Or is just that duller weather makes us all depressed and jittery? I have long been a fan of Keynes' "animal spirits" theory of investment. Stand by for the pathbreaking combination of economics, meteorology and astronomy that I call "The General Theory Of Weather And Why Everything Goes Pear-shaped So Quickly". Available in all good bookshops the moment that it gets published (and subsequently distributed to all good bookshops).