> Producing a whole new limb or whatever is way more complicated that we'd like it to be.
It isn't that much more complicated, though. Because as it turns out, you don't always have to code for that limb from scratch. You just have to flip a switch.
The key phrase here is "evolutionary developmental biology". We've learned that complex life has a lot of Lego-life quality - a lot of DNA codes for signals that enable or disable creation of whole organs at various locations, stages and cadences.
I don't have a problem with dna coding for legs existing. We don't know how the snake got that sequencing and the music video didnt solve it. It glosses over arbitrary changes in dna sequencing.
James tour's video in my parent post is far more in depth. Good luck.
It isn't that much more complicated, though. Because as it turns out, you don't always have to code for that limb from scratch. You just have to flip a switch.
The key phrase here is "evolutionary developmental biology". We've learned that complex life has a lot of Lego-life quality - a lot of DNA codes for signals that enable or disable creation of whole organs at various locations, stages and cadences.
A TL;DR in four minutes by A Capella Science: https://www.youtube.com/watch?v=ydqReeTV_vk.
A nice example that video gives is that snakes have DNA coding for legs, it's just turned off. It can be turned on, and a snake will grow legs.