This Fibonacci joke is as bad as the last two you heard combined.
Nobody knows how to "program" DNA. They just copy-and-paste bits from other organisms. A bit like how most code is built from stackoverflow.
1 mile/1 km ≈ ϕ, golden ratio, well known. But also 1 inch/1 cm ≈ ϕ² so convert from inches to cm by jumping forward 2 in Fibonacci sequence
Seriously. I'm not making this up. There are C++ programmers who think Haskell is tricky!