> The inability to find something has no bearing on whether it exists or not Bigfoot has entered the chat. > Dark matter/energy...There is no evidence that th

> The inability to find something has no bearing on whether it exists or not Bigfoot has entered the chat. > Dark matter/energy...There is no evidence that they do exist, Except there is plenty of evidence for dark matter. It's stuff that has observable mass and is found in countless galaxy rotation curve studies, gravitational lensing, etc.