Sentence examples for this is speculative from inspiring English sources

This is speculative architecture".

To be sure, this is speculative.

All this is speculative, of course.

The bear's habitat may also have included honeybees, but this is speculative.

Needless to say, this is speculative territory that "Taking Stock" does not try to explore.

Much of this is speculative at this point, but Saturday and Sunday could be yucky.

This is speculative, and TRS does not comment on questions of this nature.

This is speculative; the exact mode of inter-species retroviral transmission is still unknown.

The reason for this is speculative, but may reflect improved levels of education and health care delivery.

This is speculative, obviously, but how do the 2008 Presidential front-runners look, in terms of their phrasing?

All this is speculative, but any work of art with beauty, mystery and unpredictability will turn off the internal dialogue and negative emotions propagated by that dialogue".