Andrew,

You and I agree that market forces under current circumstances are causing concentration of wealth, leisure, artistic and entrepreneurial inputs into larger urban centres, especially in the sort of hubs I tried to describe earlier.  We also agree that there is utility of scale in such concentrations.

I'm also focussing on the downsides of such consentration when excessive and too rapid (i.e. diminished quality of life, increased gaps in wealth and income, bottlenecks in attracting needed workers or establishing or expanding enterprises, boom and bust cycles in such hubs, alienation of the hubs from the larger national society, etc.).

Traditionally, people and economic activity spreads to secondary locations when such bottlenecks occur and my concluding point above was simply that the 3 levels of government should encourage such spreading now to help alleviate the hub bottlenecks, give Canadians more attractive options, spread the wealth, income and other benefits more widely