Well, "pretty good", not perfect :). Or at least we are so good, that most of todays sensors do worse. Synestesia is not so interesting to me, that is more an

Well, "pretty good", not perfect :). Or at least we are so good, that most of todays sensors do worse. Synestesia is not so interesting to me, that is more an involuntary mix of senses, where through association I can have it voluntarily and on demand. Do you have more exapmles of "all the many senses that are conceivable but not present in any known species"? Especially some where one could utilize small sensors?