Are we overlooking signs of alien life that aren't technological or biological? 'Bread would be a signature of intelligence'

Are we overlooking signs of alien life that aren't technological or biological? 'Bread would be a signature of intelligence'

The search for alien life has tended to focus on looking for either signs of extraterrestrial technology or evidence of biological processes on other worlds. But new and ongoing research suggests that scientists should start considering signs of intelligence that are not necessarily technological, but which are sufficiently complex as to be evidence of a conscious mind at work. Biosignatures are possible signs of biology on other planets, wherea…