Title text: The sudden introduction of Venusian flowers led to an explosive growth of unusual Earth pollinators, which became known as the "butterfly effect."
In the first panel we see her teaching the history of Venus. Venus may have had water on its surface billions years ago, but if that's true all hydrogen since then was eventually lost due to dissociation. However, there is no evidence that Venus ever had fields of flowers, or Venusians, or any other form of life.
The runaway greenhouse effect on the second panel is a play on words. Miss Lenhart uses the term literally and claims the existence of sentient greenhouses that actually ran away. In reality, the effect caused Venus to develop a thick atmosphere of carbon dioxide, which raised its temperature above to approx. 460 °C (860 °F), hotter than daytime on Mercury. This eventually destroyed all evidence of anything that had been on the surface of Venus billions of years ago.
The third panel ties the previous distortion of Miss Lenhart into the very real historic reputation of the Netherlands as flower growers and as a further fabrication by Miss Lenhart the Dutch flower industry was in fact started by the Venusians.
In the final panel we learn that she is a month away from retirement and doesn't care about relaying accurate information anymore. She just wants to have a laugh at the expense of the naive school children. Although it is clear that Science Girl in the front row was not fooled.
The title text jokes about the butterfly effect, the idea that a butterfly flapping its wings in Japan can cause a Tornado in the U.S.. In this case the butterflies would just help pollinate the flowers. The butterfly effect is a term coined by Edward Norton Lorenz who had the comic 1350: Lorenz named after him due to its chaotic nature.
Although Miss Lenhart was supposed to retire a month after this comic she seems to return a year later for a math course at university level, in 1724: Proofs, where she continues the trend from this class.
- [Miss Lenhart is standing in front of an image, presumably a temperate Venus, with greenhouses, grass, flowers and a river flowing into a sea.]
- Miss Lenhart: Venus once was temperate. It had seas and rivers, and Venusians cultivated vast fields of beautiful flowers.
- [The image is now zoomed out to see the entirety of Venus, with continents and oceans. The greenhouses are shown fleeing ("running") away from Venus.]
- Miss Lenhart: Until their greenhouses fled the planet due to the runaway greenhouse effect.
- [Miss Lenhart is now standing in front of a classroom and addressing the students, we see one of these Science Girl with her hair in a bun, sitting at a desk.]
- Miss Lenhart: The Venusians pursued their greenhouses to Earth, settling in the Netherlands and kickstarting the Dutch floral industry. Any questions?
- Offscreen student (presumably Science Girl from previous panel): Because you're retiring in a month, do you just not care what you say anymore?
- Miss Lenhart: What?! I ride the skies atop a screaming bird of truth! Also, yes, I do not.
- It is not directly mentioned that it is Miss Lenhart teaching, but her looks and profession fits this character well enough to make this deduction.
- Similarly the girl knowing she is being cheated fits the description of Science Girl.
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