[Polonius]

Isn't it a bit of a stretch to say that because scientists don't know everything, they know nothing?

[elephantlips]

Never said that. However, you should not offer up any theory as anything other than a theory. Recently, these scientists found that the speed of light, always regarded as a constant, is not a constant. How many of our immutable scientific laws aren't immutable? Research into the vast reaches of space, especially where we've never been, is speculation on a grand scale and, until proven, should never be offered up any other way. Let our students further the research until genuine conclusions can be developed based on sound principles. That requires an open mind, something in rare supply.

[maro]

You are of course right. If the speed of light is a strict constraint on space travel, one could take the view that we will never know for sure about the most important cosmological questions. If that is so, how much better off are we with our astrophysical hypotheses (largely unprovable) than the ancient Greeks were with their creation myths? Is it mostly a matter of better math, less poetry?

[copycat]

Isn't it a bit of a stretch to say that because scientists don't know everything, they know nothing?

The amount we know, compared to the amount we propbably do NOT know, makes it likely that the difference between the knowledge of, say, a real thinker like yourself, compared to the knowledge of a child, is for all pratical purposes non-existant.

Not to mention that this new data makes it possible that half of what we THINK we know is FALSE.