The Globe and Mail reports in its Tuesday, Jan. 16, edition that thanks to the Trudeau government's policy of offering an effectively unlimited number of student visas and temporary foreign work permits, Canada's population grew at a record pace last year -- 5-1/2 times faster than the average developed country. The Globe's Tony Keller writes that one well-known consequence has been upward pressure on housing costs, particularly at the bottom of the market, in rental housing. A less-noticed outcome has been declining gross domestic product per capita. It has fallen for five quarters in a row. When the numbers for the fourth quarter of 2023 are released, it will almost certainly be six negative quarters. Ottawa has put the country into a bind known as a "population trap." That is the conclusion of National Bank of Canada economist Stefane Marion. A population trap is an unhappy state of affairs familiar to poor countries with very high birth rates. It is unheard of in the developed world. Yet it is what is happening in Canada today. Canada's population growth via immigration has been so high that it has outpaced the country's savings, and its ability to invest in new capital stock.