20 years ago: Sci-fi vs reality

I dug out an old presentation I used to give in 2003, for older schoolkids. I was trying to show that although sci-fi is fun, sometimes real ideas are even more fun. So I used well known sci-fi to introduce what at the time (before Facebook or the iPhone existed) were novel ideas. Some of the slides in it cover issues suddenly in fashion again now, so here it is:


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