Nov 14, 2020 05:37 AM
https://aeon.co/essays/the-biological-re...-into-life
EXCERPT (Philip Ball): . . . One of biology’s most enduring dilemmas is how it dances around the issue at the core of such a description: agency, the ability of living entities to alter their environment (and themselves) with purpose to suit an agenda. Typically, discussions of goals and purposes in biology get respectably neutered with scare quotes: cells and bacteria aren’t really ‘trying’ to do anything, just as organisms don’t evolve ‘in order to’ achieve anything (such as running faster to improve their chances of survival). In the end, it’s all meant to boil down to genes and molecules, chemistry and physics – events unfolding with no aim or design, but that trick our narrative-obsessed minds into perceiving these things.
Yet, on the contrary, we now have growing reasons to suspect that agency is a genuine natural phenomenon. Biology could stop being so coy about it if only we had a proper theory of how it arises. Unfortunately, no such thing currently exists, but there’s increasing optimism that a theory of agency can be found – and, moreover, that it’s not necessarily unique to living organisms. A grasp of just what it is that enables an entity to act as an autonomous agent, altering its behaviour and environment to achieve certain ends, should help reconcile biology to the troublesome notions of purpose and function.
A bottom-up theory of agency could help us interpret what we see in life, from cells to societies – as well as in some of our ‘smart’ machines and technologies. We’re starting to wonder whether artificial intelligence systems might themselves develop agency. But how would we know, if we can’t say what agency entails? Only if we can ‘derive complex behaviours from simple first principles’, says the physicist Susanne Still of the University of Hawai‘i at Mānoa, can we claim to understand what it takes to be an agent. So far, she admits that the problem remains unsolved. Here, though, is a sketch of what a solution might look like... (MORE - details)
EXCERPT (Philip Ball): . . . One of biology’s most enduring dilemmas is how it dances around the issue at the core of such a description: agency, the ability of living entities to alter their environment (and themselves) with purpose to suit an agenda. Typically, discussions of goals and purposes in biology get respectably neutered with scare quotes: cells and bacteria aren’t really ‘trying’ to do anything, just as organisms don’t evolve ‘in order to’ achieve anything (such as running faster to improve their chances of survival). In the end, it’s all meant to boil down to genes and molecules, chemistry and physics – events unfolding with no aim or design, but that trick our narrative-obsessed minds into perceiving these things.
Yet, on the contrary, we now have growing reasons to suspect that agency is a genuine natural phenomenon. Biology could stop being so coy about it if only we had a proper theory of how it arises. Unfortunately, no such thing currently exists, but there’s increasing optimism that a theory of agency can be found – and, moreover, that it’s not necessarily unique to living organisms. A grasp of just what it is that enables an entity to act as an autonomous agent, altering its behaviour and environment to achieve certain ends, should help reconcile biology to the troublesome notions of purpose and function.
A bottom-up theory of agency could help us interpret what we see in life, from cells to societies – as well as in some of our ‘smart’ machines and technologies. We’re starting to wonder whether artificial intelligence systems might themselves develop agency. But how would we know, if we can’t say what agency entails? Only if we can ‘derive complex behaviours from simple first principles’, says the physicist Susanne Still of the University of Hawai‘i at Mānoa, can we claim to understand what it takes to be an agent. So far, she admits that the problem remains unsolved. Here, though, is a sketch of what a solution might look like... (MORE - details)
