I've spent the last decade working in a molecular biology lab, and I'm increasingly convinced that the concept of a 'gene' as a fixed unit is outdated. We now know that a single gene can produce dozens of different proteins through alternative splicing, and epigenetic modifications can turn genes on or off without changing the DNA sequence. This flexibility blurs the line between genotype and phenotype, making me wonder if we should redefine what a gene actually is. Do you think the traditional gene concept is still scientifically useful, or is it time to retire it for a more dynamic model?