I didn't realize that implementing a screen saver for Mac back then required such low-level hacking. I guess that shouldn't be surprising, if the OS didn't have

I didn't realize that implementing a screen saver for Mac back then required such low-level hacking. I guess that shouldn't be surprising, if the OS didn't have built-in support for screen savers. The interview briefly mentions that the same company, Berkeley Systems, developed a screen magnifier for people with low vision. They also developed a screen reader, OutSpoken [1], for blind people. Utilities like those also required low-level hacking. [1]: https://en.wikipedia.org/wiki/OutSpoken https://en.wikipedia.org/wiki/OutSpoken