Reading is the assimilation of information communicated by yourself or another being via text composed of characters that are agreed on to represent certain sounds. While reading, one must be careful to not fully accept the information present so as to blindly believe what is written, instead, one must consider if what they are reading is true. If one is reading for fun, then the idea is to let the imagination of the reader work to create the pictures, sounds, smells and feelings that the writer was trying to convey.

Writing is using characters that are agreed on to represent certain sounds, to send information to oneself or others. The writer must understand (to some degree) human thinking and form combinations of words that allow the reader to accept what they have written. Writing takes more thought to accomplish, and the writer works out fallacies and may have to re-do some of their work in order to have it fully accepted by the reader.

Just like machines, the upload speed is slower than the download speed.

Reading - Passive Writing - Active

Consumption versus creation

First four letters?

Aside from that, writing requires the ability to form coherent arguments, evaluate the myriad of presentation options with respect to which will likely resonate best with the intended audience, and finally compose the output in a grammatically and syntactically correct manner so as to efficiently convey the information without undermining credibility or distracting by way of shoddy form.

Reading is latching your brain onto the rails someone else has laid out for you and going along for the ride.

Other than that they're about the same.

Hand-eye coordination.

Writing requires motor skills, and reading doesn't?