Droids will be on the minds of many this morning, your publisher among them.Now where, outside the central processor units of hectares of bank data centres, are robots to be found?Some chumps staged an IBM Watson show at a crowded Innotribe session in Singapore in September, the little chap in red and white livery working its way through a credit card selection conversation.That none are needed may be the reason why so few are in use. Or no business case yet established.Really, is there anywhere near enough science in banking?