This quote stuck out for me too, and is clearly, as you say, "inadequate". Also, no invention comes from a single brain; the biggest software systems we build,

This quote stuck out for me too, and is clearly, as you say, "inadequate". Also, no invention comes from a single brain; the biggest software systems we build, for example, are designed by many, many people. No one person can even understand something as complex as some of our large-scale software systems. And yet, we build them and they work.