Now, these words may be somewhat jarring – the vaccine is a liquid that gets injected in your arm. How can we talk about source code?
The BNT162b2 mRNA vaccine has this digital code at its heart. It is 4284 characters long, so it would fit in a bunch of tweets. At the very beginning of the vaccine production process, someone uploaded this code to a DNA printer (yes), which then converted the bytes on disk to actual DNA molecules.