Nice try but your comparison is fallacious. Lined college ruled paper is not digital.
Digital: of, relating to, or being data in the form of digits, especially binary digits <digital images> <a digital readout>; especially : of, relating to, or employing digital communications signals.
Can your paper do this?
The sequence:
Perhaps if there was a certain similarity. However:
And, so, again:
DNA computing is fundamentally similar to parallel computing in that it takes advantage of the many different molecules of DNA to try many different possibilities at once.[8] For certain specialized problems, DNA computers are faster and smaller than any other computer built so far. Furthermore, particular mathematical computations have been demonstrated to work on a DNA computer. As an example, Aran Nayebi[9] has provided a general implementation of Strassen's matrix multiplication algorithm on a DNA computer, although there are problems with scaling. In addition, Caltech researchers have created a circuit made from 130 unique DNA strands, which is able to calculate the square root of numbers up to 15.[10] Source: Wiki
Finally, please provide me with an example of another molecule, exclusive of any in the cell, that exists in nature that can be used for digital information storage.
This doesn't follow from the last, which is a response to a collection of statistics on the information capacity of DNA. The second to last quote is still true, and is relevant if that was what the preceding post was to mean that the fact that it (DNA) has some information storage capacity, and that this amount can be converted into other units possibly in a differing number base, like terabytes, or number of blu-ray discs, does not mean it is similar, or has similar origins, in the context of the above sequence.
The information capacity of DNA can be represented as an amount of terabytes. This does not mean it is similar to, or has similar origins to any example of digital circuitry for encoding information, e.g. a flash drive, or HDD, or SSD, or (as below) optical disc.
The information capacity of DNA can be represented as an amount of blu-ray discs. This does not mean it is similar to, or has similar origins to any kind of optical disc, i.e. (simply) layers of plastic and metal with pits and bumps burned into one or more layers by a kind of laser.
The information capacity of DNA can be represented as the amount of college-ruled sheets of lined paper in a given size font which would be required to encode the relevant information into base-2 numbers (or base-4 as is more applicable to DNA) written in some consistent fashion, with arabic numerals. This does not mean it is similar to, or has similar origins to any kind of mixture of wood, pulped, desaturated, cooked, colored, and on which lines of ink are placed as to draw symbols.
Finally, that it can be used to create what is known as a curcuit does not mean it is similar to, or has similar origins to, a curcuit made of some other material(s). That two things can be called by the same name in the same sentence or otherwise does not mean they are similar or have similar origins.
In the context of the preceding sequence.
And to think so is both hopeful and absurd.