Highly engaged, but with yesterday?

Happy, committed and engaged people really do perform better at work, although there is – or at least one would hope – a difference between love and enthusiasm. I’m enthusiastic about Ajax FC, prawn toasts and historic monuments – I’m nothing if not single-handedly diverse – but none of these are relationships that I’m seeking to actively consummate. But what we might call ‘the happiness industry’ seems insistent on wanting to see the L-word as often as possible.