What if Dark Matter does not exist?

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I am no scientist but have always loved cosmology, even though my knowledge of teh stars is close to zero. What is fascinating is how the various 20th century theories to explain phenomenon like the Big Bang, and the absence of mass predicted by Big bang theories is leading increasingly to a dead end. Current theories cannot be matched to observable data, and so lots of exceptions have to be created. Dark matter and dark energy are two as yet unproven propositions used to explain the apparent accelerating universal expansion. This piece suggests that Dark Matter theories are not backed up by observation of distant galaxies.

Fundamentally, science goes through periods of innovation and then crisis and then revolution (Kuhn's paradigm shifts). We are probably on the verge of a revolution in cosmology because current theories are in crisis.

Theoretical physics takes us away from the minutae of human affairs, such as the elections, to broader questions of the nature of existence and the universe. Social theories are imperfect and always evolving in line with human social evolution. There are no revolutionary trends at present in social theory, but there are conflicts of values and world views, although less than in the past. God has lost his throne but science is struggling to replace God. Science is clearly superior for explaining nature and the universe, and ourselves. And yet our knowledge is limited. We are almost certainly only in the foothills of discovery, trapped as we are on a small planet in a vast and ancient universe in which the lifespan of the human race, never mind each human, is a flash in the pan.