Warning Signs for Tomorrow

Anders Sandberg offers a whole bunch of what he calls Warning Signs for Tomorrow. Here are my two favorites, along with Anders' notations:

Using microdevices, identity technology and pattern recognition software, it is not inconceivable that future environments will be 100% privacy-free. If this is not the standard situation but only occurs in some places, this sign would mark the surveilled area. In the case of total surveillance, the opposite sign, with a crossed over or blindfolded pyramid, would mark the risky non-observed areas.

Chaos control is likely to be very useful in many future applications. But chaos is sensitive, so interfering with such a system might be unadvisable.

Thanks to Brad for the tip.