Because apparently people read much slower on screens than they do on paper:

What’s the best reading platform? Apple’s iPad, Amazon’s Kindle, or good ol’-fashioned paper-and-ink? Jakob Nielsen, of the Nielsen Norman Group, wanted to find a definitive answer to this semi-age-old question and, just for the heck of it, he decided to test these three “products” against the readability of a simple PC as well.

The result? A 24-user study showed that reading from a printed book—versus an e-book on any of the three tested devices—was a faster experience to a significant degree. Readers measured on the iPad reported reading speeds, on average, of 6.2 percent slower than their print counterparts. The Kindle 2 clocked in at 10.7 percent slower.

Which means that from now on, if I neglect to update the blog in a timely fashion, I’m going to fall back on the excuse that I’m giving all my readers a chance to catch up. Since e-reading is such a slow process and all.

The question I have is, what about comprehension? The last sentence mentions that participants were “quizzed to determine their comprehension and understanding of what they just read,” but apparently such information is irrelevant. Do we really only care how fast we can read, and not why?