Our columnist Eamonn Carey is a self-confessed tech junkie. He knows he’s got a problem, and he’s getting ready to go cold turkey. I am obsessed. I check my email first thing in the morning and last thing at night. I am like a drug addict. When I get even faintly distracted, during a lull in conversation, I’ll almost unconsciously reach for my phone and check my Twitter stream.Studies have shown …