While reliable data are scarce, researchers have typically talked of a "bottom third" with sharply limited prospects.
And this makes it even more unlikely that a first-time director will make a risky film with limited commercial prospects.
Dishearteningly, however, all echo Sinclair's views about the limited prospects for life extension in the coming decades.
A goodly portion of the Federal Government closed down today, with limited prospects that it will open again this week.
The Mac alone, however, would have left Apple with limited prospects in a Windows world.
But he is undaunted by the limited prospects for another huge commercial success from the kind of work he is doing now.
The reality is that there are limited prospects for persons with criminal records.
Currently, most of their commercial lending is to small businesses, an area with limited prospects for growth.
Where some might see limited prospects, he sees opportunity.
But now it's apparent that members of racial minority groups are concentrated in departments like public relations and human resources, with limited prospects for promotion.