how recessions, technology and social changes, make professions obsolete

Business insider has a very interesting piece, telling of 23 occupations that will probably never recover from the last great recession.

You don't have to agree with them, or with the complexity of the evaluations. You have got to admit that is an interesting point. There are different factors at work, naturally.

When we are talking of occupations being hit, we are talking of those positions that will be lost in one country and filled in another, cheaper state. But we are also talking about those positions that will be lost due to technological changes that combined with financial pressures, forced innovation into the throats of the relevant industries.

Recessions force changes, and some of them are profound enough to make things look very different afterwards. Is it possible that in a way, recessions are essential for renewed development as forest fires are ?