Pinus

As far as I can tell, this was aired by Swedish TV as "Snillen spekulerar" (they have been doing a programme like this every year since approximately the dawn of TV time), and by the BBC as "Nobel Minds". So, it has to fit into a TV schedule slot, and be appropriate for a general audience, not just science nerds.

BBC: https://www.bbc.co.uk/programmes/n3ct5g1c SvT: https://www.svtplay.se/video/20431599/nobel/nobel-2018-snill...

Just out of curiosity, have you looked into what data is missing? Is the house (or at least the street) mapped, but missing the street name or the house number (assuming you live somewhere where these are relevant), or is the street completely missing?

I, too, scratched my head over that for a while, and eventually realized that I had probably misunderstood what the authors are trying to say.

I think what they mean is that if the compiler has analyzed the code, not shown in the example, that comes before the if statement, and concluded that unless something undefined happens, cond can only be 0 or 1, then it can optimize out the condition.

They are not saying that the code actually shown is enough to conclude that cond must be 0 or 1.

I have only studied the subject of drawing very superficially, but it is easy to find people who say "the trick is drawing what you see, not what you know is there". Then there are other people who seem to agree with you, and break everything down into basic shapes, which seems to contradict the previous statement. Different schools? Different approaches to suit different persons? A fundamental divide in the drawing community? :-)