Steve3007 wrote:Greta:
When the electricity stops, the machine won't break down in a week as we do. It can lie dormant for years until the electricity is turned on again.
If our blood stops flowing we break down in minutes due to the irreversible damage done by oxygen starvation. I guess the fact that computers don't suffer the same fate in the absence of electricity reflects the fact the we evolved but computers were designed in advance. We weren't planned and put together in advance and then "switched on". The blood (or more generally fluids) flowed from the very beginning. In the beginning, of course, the fluid was outside, and for many creatures still is. But we animals took some of that salty fluid and trapped it inside a semi-permeable bag of skin so we can carry our own little oceans around with us.
Yes, the design aspect is basically an evolutionary advancement. Life being able to consciously and deliberately extend on itself.
Water's "magic" is in its solubility. It's not nearly so productive in its steam or ice forms. You bring energy into the body in various packets (molecules) that water "opens up" and allows to be distributed, allowing from complexity. In a machine, electricity does the job of making things happen, acting as it does very much like water. Information can be carried around on anything that allows exchange of electrons.
Steve3007 wrote:Having said that, I guess some kind of analogy could be made with seeds: they can lie dormant for years until fluid is re-introduced and they spring to life.
I have a bit of a mad scientist idea about seeds and robots. When humanity meets its inevitable overheated end (hopefully millions of years hence) I can imagine there will be AI robots on the outer moons, using material scooped from the surface to 3D print synthetic life based on highly refined DNA templates. Basically they will be seeds at a larger (and more intelligent) scale.
-- Updated Mon Apr 10, 2017 10:31 am to add the following --
Steve3007 wrote:Some people have suggested that in lower temperature environments (e.g. Titan) liquid methane could perform a similar role. Maybe.
Since methane is only liquid at very cold temperatures, a long way from the Sun, there's not really enough energy available for complex life. A methanogenic life form would need to be huge in order to capture enough energy from the Sun. NASA's astrobiologist, Chris McKay, thinks such life might be huge flat goey sheets floating on the lake - lots of surface area with low energy needs. One exciting option might be the idea of hot watery hydrothermal vents in a methanogenic lake. No intelligence, though, alas.
Steve3007 wrote:Anyway, it can be interesting going through the "View Unread Posts" section. Occasional neglected threads that come alive after an early dormant period.
I see you actually beat me to the seed analogy. Watering neglected topics with the watering can of thought. Nice one.
Amazing the things clever things one can do when oblivious. I like that analogy. Do the posts promote growth or contraction? Is any given post a root, trunk, branch, a twig or a leaf? lol