Good case for affordance - bug went under the wire because its
   body would fit through the space. It's a different way of seeing
   things than the traditional logical/rational/computational
   models. Saves a lot of unnecessary computations.
   [1]https://en.wikipedia.org/wiki/Affordance[2]3708500650419315377

References

   Visible links
   1. https://www.facebook.com/l.php?u=https%3A%2F%2Fen.wikipedia.org%2Fwiki%2FAffordance&h=zAQEwqdfFAQGJSWII2cLYj4S_LEE_6iyUTeBIeL36hW_Uqw&enc=AZM6YVV9AReUI5Kh_hoiMSX9pp4ILag1Kvtc1Vz1dn5yDyFkUmm2cWUrw3TaViOMY165sYY6Xd9vIsCyFh_ZEveNhStQ-hUuBMxHpHL385BMDcKC-j9la3piDGS1l2objOLzlPc2jM7gpJEhNjvylgACUrpmHZd7ToM6zZRExnlXfLtVVc4XreKp5LCGA4Hm11k&s=1
   2. http://icopiedyou.com/wp-content/uploads/2015/10/3708500650419315377.gif