Replaced by machines?

The Computer History Calendar gadget on my iGoogle page featured the following quote today:

The real danger is not that computers will begin to think like men, but that men will begin to think like computers.
-- Sydney J. Harris, American journalist.

When I read that, the following thought came to me: Perhaps another real danger is that men will leave the thinking to computers.

It has long been the lament of high school and grade school teachers that the arithmetic skills of their pupils have declined since the invention of portable electronic calculators.

I for one believe that I myself have also fallen victim to the advancement of technology. I remember well when I had to use typewriters to type out my reports in high school as well as in college. Back then one had to be careful when typing, to strike the keys in the correct order and to watch out when you're about to reach the end of the line. Nowadays, word-processing software take care of justification and automatically insert a carriage return. Incorrectly typed words are corrected on the fly as well. For instance, I often mistype "the" as "teh". Unfortunately, that bad habit will probably go uncorrected because I will continue to type "teh" but the software will always replace that with "the".

With that I certainly hope my mental faculties won't be (at least further) diminished by the convenience of computers and smart software.