It strikes me that 4.2 gigabytes is comparable to the size of the human genome, which takes between 725 megabytes to 3 gigabytes to store uncompressed depending

It strikes me that 4.2 gigabytes is comparable to the size of the human genome, which takes between 725 megabytes to 3 gigabytes to store uncompressed depending on if you pack 4 base pairs in a byte (https://stackoverflow.com/q/8954571 https://stackoverflow.com/q/8954571).