During the summer in the small Suffolk village of Yoxford, young children can
be seen standing ankle high in the River Yox, fishing for sticklebacks. What
makes this scene surprising is that Yoxford used to have a port and a quay
and a lively centre of commerce. However, the river silted and the trade
moved elsewhere, consigning Yoxford to an idyllic but less productive future.

In reviewing the FTSE 100 constituents, one is forgiven for wondering if,
almost imperceptibly, silting has begun at the London Stock Exchange. There
is only one software company in the index and that is Sage,