The human genome is about 3.5 billion base pairs, or about 800 MB. But how much of this do humans have in common? Humans and chimpanzees share more than 95% of their genome, which means the difference among humans must be a lot less.
It turns out that a person’s DNA can be compressed to just 4 MB of data, which is in many ways fascinating. Just think about it. What could you fit in 4 MB? A quality photograph of your summer vacation? Your favourite song? Everything that makes you who you are?