Fascinating example for me. I do CAD... using text! My only experience with it is programmatic in openscad. We check the visualization, but only on output of the final product. For me it's dramatically easier to work with. That may be a personal defect but it's also consistent. Underneath the rendering is always data, which is text, markup, but strings of fundamental data.

And in science it's not a stretch at all that numbers come first. I'll argue you're reaching. Today no one is drawing their numbers from experiments directly on a graph. They record them digitally. In textual form typically, and then render them visually to obtain generic understanding. But also there, in the end, your conclusions (per tradition) need to be point estimates with error bounds expressible in concise textual terms. You may obtain them from looking at images but the hard truth is numerical, digital, textual.

If it helps, AFAIK (I do atomic force microscopy of DNA), DNA's height is closer to 2nm than 4.

This seems obvious but was not confirmed by genetic evidence. The rate of adaptation turns out to be much higher than can be explained by skin cancer.

The real cause appears to be fertility. UV radiation breaks down folate (vitamin B9) in the bloodstream, and folate is critical for DNA synthesis and repair. Folate deficiency causes serious problems in pregnancy, neural tube defects like spina bifida, and may impair sperm production. So darker skin in high-UV equatorial regions likely evolved partly to protect reproductive capacity.

In the other direction, lower melanin production helps with vitamin D synthesis in lower sunlight environments. Vitamin D requires UV-B radiation to be synthesized in the skin, and melanin inhibits this. Vitamin D is also linked to fertility. It's involved in sex hormone production and has been associated with successful implantation and pregnancy outcomes.

If you're curious, check out Nina Jablonski and George Chaplin's work. Their hypothesis is that skin color evolution as fundamentally about reproductive fitness: dark enough to protect folate, light enough to synthesize vitamin D. Both nutrients affect fertility, fetal development, and offspring survival. They have an immediate primary impact on fertility and success, while skin cancer even in the most extreme environment/phenotype mismatch, has an onset after reproductive age.

LLMs aren't effective when used this way.

You still have to think.

IMO a vibe coder who is speaking their ideas to an agent which implements them is going to have way more time to think than a hand coder who is spending 80% of their time editing text.