A simple Python simulation of cosmic metallicity evolution using Astropy and Planck 2024 cosmology. Demonstrates exponential chemical enrichment, sensitivity to physical parameters, and galaxy metallicity gradients—educational tool for astrophysics and fine-tuning studies.

A simple Python demo illustrating the extreme sensitivity of the triple-alpha fusion process (carbon production in stars) to tiny changes in nuclear resonance energy. Educational tool highlighting fine-tuning in stellar nucleosynthesis.