The Arguments

In everyday English, “theory” means a guess. In science, a theory is an extensively tested explanation supported by a large body of evidence. Gravity, germ theory, and plate tectonics are all “just theories” in the same sense.

The scientific meaning of “theory” refers to a well-substantiated explanation of some aspect of the natural world that incorporates facts, laws, inferences, and tested hypotheses. The National Academy of Sciences defines a scientific theory as “a comprehensive explanation of some aspect of nature that is supported by a vast body of evidence.”

The evidence for evolution includes:

• The fossil record, showing transitional forms across geological strata
• DNA and molecular biology, revealing shared genetic heritage across species
• Direct observation of evolution occurring in real time (antibiotic resistance, Darwin’s finches, the Italian wall lizard)
• Biogeography — the distribution of species across continents matches evolutionary predictions
• Comparative anatomy — homologous structures across species

Hovind’s conflation of the colloquial and scientific meanings of “theory” is a well-documented equivocation fallacy. No credible scientific institution disputes that evolution is both a fact (species change over time) and a theory (the mechanism by which it occurs is extensively documented).

The Cambrian explosion (~538–485 million years ago) saw the rapid diversification of animal body plans. Creationists present this as “sudden appearance from nothing,” but this misrepresents both the timeline and the evidence.

What the evidence actually shows:

1. “Sudden” in geological time means ~53 million years. The Cambrian explosion spans a longer period than the entire age of the modern primate order. In human terms, this is an immense amount of time for evolutionary change.

2. Precambrian ancestors exist. The Ediacaran biota (~635–538 Mya) includes clear precursors to Cambrian animals. Kimberella shows features of bilateral symmetry. Trace fossils show increasing complexity of animal behavior before the Cambrian.

3. Molecular clocks confirm deep divergence. DNA evidence shows that the major animal lineages diverged well before the Cambrian — their body plan “templates” already existed; the Cambrian saw their ecological diversification and improved fossilization due to the evolution of hard parts (shells, exoskeletons).

4. Environmental triggers are well-studied. Rising oxygen levels, the evolution of predation, and the development of eyes all contributed to the rapid ecological diversification.

The Cambrian explosion is one of the most intensively studied events in evolutionary biology. It is explained by evolutionary mechanisms, not despite them. Hovind’s claim relies on a 19th-century understanding of the fossil record that has been superseded by over a century of subsequent discovery.

Hovind frequently claims that carbon dating “doesn’t work” by citing cases where living organisms gave unexpected C-14 dates. These examples misrepresent how radiometric dating is applied.

How radiocarbon dating works: Living organisms absorb carbon-14 from the atmosphere. When they die, C-14 decays at a known rate (half-life ~5,730 years). By measuring remaining C-14, scientists determine time since death — effective for materials up to ~50,000 years old.

Why Hovind’s examples are misleading:

• Living snails giving “old” dates: This occurs in hard-water environments where organisms absorb ancient carbon dissolved from limestone. This is the well-understood “reservoir effect,” and scientists account for it. Hovind presents edge cases without context.
• C-14 in coal or diamonds: Trace C-14 in ancient materials can result from contamination or in-situ production via neutron capture. This is documented and does not invalidate the method.

Cross-verification: Radiocarbon dates are independently confirmed by dendrochronology (tree rings), ice cores, varves (lake sediment layers), and other radiometric methods (U-Pb, K-Ar). The IntCal20 calibration curve represents decades of cross-referencing across methods.

Scientists are fully aware of C-14’s limitations and apply it within its valid range. Hovind’s argument depends on cherry-picking anomalies while ignoring the vast body of concordant results.

This is one of the most common creationist arguments and one of the most thoroughly refuted. It rests on a fundamental misunderstanding of what the Second Law actually states.

What the Second Law actually says: The total entropy of an isolated system tends to increase over time. The key word is “isolated” — a system with no external energy input.

Why this doesn’t apply to evolution:

1. Earth is not an isolated system. It receives approximately 174 petawatts of energy from the Sun. This constant energy input drives weather, photosynthesis, and all biological processes.

2. Local decreases in entropy are normal. Ice freezes, crystals grow, embryos develop, and stars form — all represent local increases in order, paid for by larger entropy increases elsewhere. A refrigerator makes things colder inside by expelling heat outside.

3. The math doesn’t support Hovind. Physicist Daniel Styer calculated that the entropy decrease associated with evolution is negligibly small compared to the entropy increase from solar radiation absorbed by Earth. The Second Law is satisfied by an enormous margin.

Hovind’s version omits “isolated system” and substitutes “order to disorder” for the precise concept of entropy. No physicist supports this argument against evolution. It reflects a misunderstanding of introductory thermodynamics.