[bcjdjsndon]

> I know they worked hard on it. That is still a valuable sign

An infant scrawling the alphabet in its own excrement would have that "signal"...

[jagged-chisel]

And also has the hallmarks of "art." I suggest, however, if one were to actually implement this, that the 'excrement' should likely be a food-safe lookalike; maybe chocolate with granola and fruit hunks. Less likely to have trouble with child welfare authorities.

[psd1]

Just a short jump from there to the concept of steganography over the back channel of aggregate child welfare enforcement actions. Typical HN

[jagged-chisel]

You can probably get VC money for that