Subject: Idea Theory Framework.
Speculation has a real place in science and in your worldview, but speculative ideas are not established truths. They are starting points, possibilities, or failed guesses that must eventually be supported, revised, or discarded.
Speculation exists even in science. What we observe are empirical ideas, and our good ideas about empirical things are rational ideas. Both are treated as true until disproven, but neither is the material world itself. Speculative ideas are either new or already disproven, and in a logical setting they remain irrational until evidence or sound reasoning moves them into a stronger category.