"One of the things that is not so good is that a decision was made long ago about the size of an IP address - 32 bits. At the time it was a number much larger than anyone could imagine ever having that many computers but it turned out to be to small"

This quote by Jon Postel is referring to the size of an IP address, which is 32 bits. At the time the decision was made, it was a number much bigger than anybody could have pictured, as it was thought that there would certainly never ever be that many computer systems. Nonetheless, as technology has actually advanced, it has actually come to be clear that 32 little bits is too tiny to accommodate the number of computer systems that exist today. This has created a variety of problems, such as the requirement for IPv6, which is a bigger address dimension. This quote highlights the value of making decisions with the future in mind, as technology is constantly advancing and what might appear like a multitude today may be as well small in the future.