1.   Appraisal schemes have a nasty habit of becoming complex and over sophisticated.

2.   Eventually the scheme had to be dropped and the cattle and yaks and horses returned to the care of individual herdsmen.

3.   Likewise, for those caring for an adult the scheme would have to be built on an adequate system of disability benefits.

4.   Self help Many community care schemes have elements of self help built into them.

5.   The scheme must have tangible benefits for the unemployed.

6.   Tidal schemes have the advantage of regularity, an integrated electricity system could organise itself according to high and low water.

7.   Settlement and land reform schemes have to be administered in the interest of capitalist agriculture.