Many years ago, I did a share trading course based on the work of William Gann, reputed to be the most successful Wall Street trader ever.

His approach was to study past cycles to predict future ones. He contended that like crops and the seasons, everything in the universe has a repeating cycle.

For the record, I have not made a fortune as a trader. However, I find his concept of history repeating in cycles applies where you least expect it — including general practice.

The latest evidence of this is the MBS review of care plans.