American psychologist and computer scientist (1915–1990)
J. C. R. Licklider (March 11, 1915 – June 26, 1990) was an American computer scientist. He is particularly remembered for being one of the first to foresee modern-style interactive computing, and its application to all manner of activities, which he did much to initiate.
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Present-day computers are designed primarily to solve preformulated problems or to process data according to predetermined procedures. The course of the computation may be conditional upon results obtained during the computation, but all the alternatives must be foreseen in advance. … The requirement for preformulation or predetermination is sometimes no great disadvantage. It is often said that programming for a computing machine forces one to think clearly, that it disciplines the thought process. If the user can think his problem through in advance, symbiotic association with a computing machine is not necessary.
However, many problems that can be thought through in advance are very difficult to think through in advance. They would be easier to solve, and they could be solved faster, through an intuitively guided trial-and-error procedure in which the computer cooperated, turning up flaws in the reasoning or revealing unexpected turns in the solution. Other problems simply cannot be formulated without computing-machine aid. … One of the main aims of man-computer symbiosis is to bring the computing machine effectively into the formulative parts of technical problems.
The other main aim is closely related. It is to bring computing machines effectively into processes of thinking that must go on in "real time," time that moves too fast to permit using computers in conventional ways. Imagine trying, for example, to direct a battle with the aid of a computer on such a schedule as this. You formulate your problem today. Tomorrow you spend with a programmer. Next week the computer devotes 5 minutes to assembling your program and 47 seconds to calculating the answer to your problem. You get a sheet of paper 20 feet long, full of numbers that, instead of providing a final solution, only suggest a tactic that should be explored by simulation. Obviously, the battle would be over before the second step in its planning was begun. To think in interaction with a computer in the same way that you think with a colleague whose competence supplements your own will require much tighter coupling between man and machine than is suggested by the example and than is possible today.
It is probably dangerous to use this theory of information in fields for which it was not designed, but I think the danger will not keep people from using it. In psychology, at least in the psychology of communication, it seems to fit with a fair approximation. When it occurs that the learnability of material is roughly proportional to the information content calculated | by the theory, I think it looks interesting. There may have to be modifications, of course. For example, I think that the human receiver of information gets more out of a message that is encoded into a broad vocabulary (an extensive set of symbols) and presented at a slow pace, than from a message, equal in information content, that is encoded into a restricted set of symbols and presented at a faster pace. Nevertheless, the elementary parts of the theory appear to be very useful. I say it may be dangerous to use them, but I don’t think the danger will scare us off.
It seems reasonable to envision, for a time 10 or 15 years hence, a 'thinking center' that will incorporate the functions of present-day libraries together with anticipated advances in information storage and retrieval.
The picture readily enlarges itself into a network of such centers, connected to one another by wide-band communication lines and to individual users by leased-wire services. In such a system, the speed of the computers would be balanced, and the cost of the gigantic memories and the sophisticated programs would be divided by the number of users.
One must be prepared to reject not only the schema of the physical library, which is essentially a response to books and their proliferation, but the schema of the book itself, and even that of the printed page as a long term storage device, if one is to discover the kinds of procognitive systems needed in the future.
I came to MIT from Harvard University, where I was a lecturer. I had been at the Harvard Psychoacoustic Laboratory during World War II and stayed on at Harvard as a lecturer, mainly doing research, but also a little bit of teaching—statistics and physiological psychology—subjects like that.
Then there came a time that I thought that I had better go pay attention to my career. I had just been having a marvelous time there. I am not a good looker for jobs; I just came to the nearest place I could, which was in our city. I arranged to come down here and start up a psychology section, which we hoped would eventually become a psychology department. For the purposes of having a base of some kind I was in the Electrical Engineering Department. I even taught a little bit of electrical engineering.
I fell in love with the summer study process that MIT had. They had one on undersea warfare and overseas transport—a thing called Project Hartwell. I really liked that. It was getting physicists, mathematicians—everybody who could contribute—to work very intensively for a period of two or three months. After Hartwell there was a project called Project Charles, which was actually two years long (two summers and the time in between). It was on air defense. I was a member of that study. They needed one psychologist and 20 physicists. That led to the creation of the Lincoln Laboratory. It got started immediately as the applied section of the Research Laboratory for Electronics, which was already a growing concern at MIT.