Somewhere, somehow, life without him had become unthinkable.

Luttwak's...purpose is to make us think about what to all too many Americans has become the unthinkable.

LEAD: Television came to the Senate only a little over a year ago, but life without it has already become almost unthinkable.

But by the later decades of the century such conduct was becoming increasingly unthinkable.

A peace which left Israel ruling over millions of voteless Palestinians has become unthinkable.

The idea of helping people expire has become less unthinkable than watching them die too slowly by being forced to live too long.

War would at last become unthinkable.

Almost overnight, the idea of any sane businessman spending money on a shiny new rig in which to haul their products around has become unthinkable.

Over the millennium, it had become unthinkable.

The first lesson to be learned from the crisis is that economies are now so interconnected that national solutions have become unthinkable.