This document discusses the demarcation of science from pseudoscience and the criterion of falsifiability. It explores how theoretical sciences like cosmology and theoretical physics deal with phenomena that are unobservable and difficult to falsify. While mathematics and theoretical constructs are useful for developing scientific understanding, overreliance on interpretation of data without direct observation can compromise objectivity and falsifiability. Determining what constitutes science versus pseudoscience or non-science is a complex problem with no definitive answers.