And these are artificial and imprecise requirements. 1) Homeostasis for example. To maintain one’s existence in changing circumstances? How much change is allowed in the circumstances before the entity becomes inoperational? Is the inoperational status reversible?
2) Taking in energy and using it is obvious, but that could be either consuming chemical “food” or directly converting the energy provided by the Sun, like the vegetation does. A photocell would do just the same.
3) Growth is not necessary at all.
4) Adaptation is just a different word for homeostasis.
5) Reproduction could be organic or not. Remember the “theory of self-reproducing automata” by John von Neumann, E. F. Codd and other mathematicians. And it is irrelevant anyhow.
6) Complex response to complex stimuli is the most important point. .
An attribute or a characteristic belonging to all living organisms or virtually all of living beings on Earth should be considered a good definition of what constitutes “life” or as criteria to determine which is a living organism simply because we have found no forms of life that evolved outside Earth or came by other than a different process.
For example, cellular organization is a good definition because all living beings are composed of cells. We simply have not found a living being without cells, does not reproduce, or its genetic material is held in mediums other than DNA. The same goes for all other “artificial and imprecise” requirements.
I know that you are bordering on the theoretical and speculative, such as technology allowing mechanical lifeforms to fulfill the conventional definitions, But, as it remains to be seen whether technological innovation can progress to such point, and we have not observed silicon-based lifeforms, the conventional definitions of life need not to be thrown away.
How did “complex response to complex stimuli” became a good definition for life? What made it so? Is it because it applies to all living beings that evolved on Earth? If so, why ignore the other definitive characteristics?
I think it is more likely. It is no wonder that computer viruses were named as such for the similarity with the biological ones. Your point is important, the label: “living” is arbitrary. There are the web-crawling info-bots to collect information. Purposeful activity.
“Living” is arbitrary. “Living organisms” is not an arbitrary label and is under a general set of definitive characteristics. You are confusing purposeful activity with a living organism. A non-lifeform can certainly be programmed with such but it does not make it a living organism.
They might not be biologically alive - if we reserve this phrase to the result of “organic chemistry” (aka carbon based entities) but they would be “intellectually alive”. A newborn child is biologically alive, but not intellectually.
Or so it is. “Intellectually alive” is different from “biological life”.
How do you know that the system (the room) does not understand?
That is basically the point of the Chinese Room thought experiment. You are being placed inside the room and its happenings, hence you are able to find out.
The programming or teaching probably would take many years, just like with human beings. How many years does it take to teach someone to understand any language - especially the “first one”? The whole process is repetition and imitation based while the appropriate neural connections develop.
The Chinese Room thought experiment is concerned with today’s technology, not the speculative. This kind of “learning” is not possible with computers and AI today. The mental processes of AI today are far too limited, and hence, the “learning” functions of today’s “learning machines” and neural networks are in its infancy. Synapses in animals and humans are a light years contrast from binary intelligence of computers, as memsistor memory is still under development.
But there is no need for the “Chinese room” hypothesis. There already exists the machine: “Watson”, which was able to beat the best human players in Jeopardy. On what grounds can one declare that Watson did not “understand” the questions it answered correctly? How do we know that the human Jeopardy players “understood” the questions? I watch Jeopardy every day when I can, and I don’t even understand many of the questions, less being able to give the correct answers. After all the questions are intentionally ambiguous and misleading.
Rather, you are anthromoporpizing Watson. We can know if the human Jeopardy players understood the questions by asking them whether they were confused or not. We can know if “Watson” understood the English language questions by analyzing how it is programmed to analyze and deconstruct the English language. Watson does not understand questions the way we do, but merely parses questions into keywords and fragments to find statistically related phrases, using statistical analysis -
en.wikipedia.org/wiki/Watson_(computer)#Description
Certainly, Watson does not understand the questions in the way the human Jeopardy players do.
And Searle’s assumption that the process of thinking can be reduced to a static set of symbol-manipulation is incorrect. The transition function in the brain (as in a cellular automaton) is not static. It changes constantly, with every new bit of information.
It fits more the thinking set of modern computers, not the human brain. Computer intelligence is binary, in contrast to animal and human synapses.