Whew!
may not
could be
might be
models project
guestimates are
While it is true that the left abuses scientific inquiry (all forms of inquiry, really) with baseless claims carefully couched in hedge words such as could, might, may, etc., that does not mean that we should reject every hypothesis out of hand even if it is expressed using those same hedge words, as they are the proper framework for stating a hypothesis. Healthy skepticism is fine but flat rejection of ALL hypotheses is a good way to get dunked.