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    • CommentTimeDec 22nd 2018
    Wow, that clearly has implications about how much life there is in our galaxy.

    Thanks for posting.

    Happier Christmas.
    • CommentTimeDec 22nd 2018
    What about smoke?

    Houseplant with hint of rabbit purifies indoor air.
    Posted By: TrimWow, that clearly has implications about how much life there is in our galaxy.

    Thanks for posting.

    Happier Christmas.

    And Happiest Christmas to you too, Trim.

    We have to hang around for Al to see the light!
    When that light is modulated and flashing a sequence of primes.... then wake me up.
    • CommentTimeFeb 4th 2019
    Poor thing did its friends and relatives give a good send off, or just eat the remains?
    Reconfigurable signalling logic implemented by nanowires within the cell
    • CommentTimeMay 24th 2019
    Do Snails Fart? A Behavioural Ecologist Answers This Burning Question.
    Meet your inner synapsid

    As children, we used to dig subterranean burrows, dens and forts. I even fantasised regularly about living in an underground palace. Race memory, obviously.

    Ergo Minecraft's success.
    • CommentTimeJun 20th 2019
    To each his own.
    • CommentTimeAug 13th 2019
    Wonderful videomicroscopy!
    Molecular Motor Proteins - fascinating. Maybe we can engineer with this.

    The complexity of the domain is daunting.
    Indeed. It's a good thing God had 4 billion years to get it all going.
    I suppose we study all this to try to improve medicine and to slake our curiosity. As engineers, the endgame is to learn all the tricks and then do it better - more simply, more efficiently, etc. When you've been evolving all your tricks over deep time, you've got all this crud hanging about which could be improved had you known all the tricks up front.

    What's needed to build an organism? Unclear! Some guesses...

    1. Food for energy I/O (ingest, digest, excrete).
    2. Gas for reactants I/O (respiration)
    3. Photosynthesis I/O or equivalent.

    Some combination of these three powers everything else (e.g. makes ATP). Now we need

    4. Circulation: uses almost-closed loop of fluids (blood, lymph, etc) and perhaps dissolved #2.
    5. Mobility: muscles perhaps driven by cell motors as are ours.
    6. Regulatory system - many, nested, micro and macro (proto-brain).
    7. Reproductive system
    8. Repair system

    Now we have enough components for life.
    Adaptation/evolution is optional, because if the design is good enough and the environment is stable then it's unnecessary.

    9. Brain

    Right-wing jerkoffs take note: there is no a priori necessity for predation.
    • CommentAuthorBigOilRep
    • CommentTimeSep 5th 2019
    Your bio- and anthropo- centrisms are showing.
    I tried to be as general as possible, and actually had this in mind.