To talk of what would have happened if we had acted differently is nothing but purely theoretical speculation.

At present, this work can probably be most fairly described as extended theoretical speculation.

A decade ago all of these fears might have been dismissed as mere theoretical speculation.

Ask her about interactions with any drugs you may be taking, and especially ask whether concerns are based on evidence or theoretical speculation.

In any event, I have nothing to offer by way of theoretical speculation.

But theoretical speculation persists ence the quantum foam and other ideas.

His work lends itself to theoretical speculation, and in the 80's, theory decides stature.

These discoveries set off a flurry of theoretical speculation that continues to this day.

Their insight was based more on theoretical speculation than on historical analysis.

The Commission's forecast on spending, and to which it adheres at 1.27 %, is extremely theoretical speculation.