Anonymous NSF Review Title: Interactivity Matters : Developing a Model and Prototype Indicator for the Human-Computer Mixed Sysem the Internet. "What is the intellectual merit of the proposed activity?" It would intellectually very interesting to review and probe the ideas of Norbert Wiener and JCR Licklider in light of all that has happened in the several decades since they did their major thinking. Wiener was a central figure in laying out the promise of technology, especially technology that learned from past behavior. He thought deeply about the dangers that machines posed, and about the human weaknesses in the use of machines that should set red flags for society. Licklider, by contrast, emphasized the positive potential for human-computer symbiosis in very sweeping terms. He became an enthusiastic, ebullient grandfather of the ARPANEt/Internet, inspiring a generation of engineers and programmers vital to its success. Bringing the ideas of these two great men back to life today would be a very worthwhile undertaking. "What are the broader impacts of the proposed activity?" The Internet is entering a new stage in development, where the growing problems and misdirections in its use will be addressed. Referring back to the ideas of Wiener and Licklider could be part of the general critique that is required. It would be a very appropriate and timely way to light a beacon for this next crucial step.