This is incorrect. There are many scientific hypotheses that are widely believed to be true, such as P!=NP or global warming. To say that "we don't know", or "i

This is incorrect. There are many scientific hypotheses that are widely believed to be true, such as P!=NP or global warming. To say that "we don't know", or "it's equally probable that..." would be extremely misleading. And you'd be hard pressed to find a scientist who doesn't believe in one outcome or the other.