Isn't it possible that the 20th century had an obsession with language and symbol systems because so much remarkable progress was being made in advancing language and the symbolic representation of ideas? These advances, which seem so abstract, had very real industrial implications, resulting in 100s of billions of new wealth. To give just 2 examples of the progress:
1. Mathematics has improved so much in the last 90 years that Einstein's Theory of Relativity can now be written using just one third the lines that Einstein had to use.
2. Computer languages have improved so much that software can now have graphical interfaces. Graphical interfaces are event driven and code to handle those events is very complex. The software being written today, like Windows 2000, could not possibly be written using the computer languages of the 1960s.