Previous discussion from another source: <a href="https://news.ycombinator.com/item?id=8652475" rel="nofollow">https://news.ycombinator.com/item?id=8652475</a> (87 points, 237 days ago, 64 comments)<p>I'll copy a part of the first comment:<p>> <i>The idea that having variables which can take on an infinite range of real-valued values fascinates some people. But you can't, not really. Resolution is limited by noise. Noise is inescapable, since electrons are discrete. Infinite resolution is impossible in a granular universe. Real numbers are a convenient fiction which cannot be realized in hardware. ("God created the integers; all else is the work of man." - Kronecker)</i>