Breathe out, everyone. It looks as though Palm 2 has not only survived the arrival of Tesco Express, but thrived on it. Ultra-Darwinists (I'm not one) and ultra-believers in market forces as the answer to everything (ditto) will hail this as a triumph of adaptation and competition. I'll go along with that to the extent that Abdullah and his team have undoubtedly risen to the challenge the arrival of the supermarket monolith represented. But I'm more interested in the way they've done it. This seems to throw into relief the existence of certain trends that have long been predicted for this corner of the great metropolis, but never been conspciuously present.