I disagree. The incentivising force for continued adaptation is changes in your environment (including your fellow other species). Static goo—or uniformly adapting goo—cannot be optimal for all of a planet at once, leaving room to be outcompeted by diversifying dark-green goo, which may eventually evolve into goo-man (I mean, hu-man):
A planet filled with homogeneous green goo would still be subject to offering advantages based on adaptation on two major axes:
1) Planets universally offer different conditions for habitats, pole temperature versus equatorial temperature, seismic activities on active planets, surface versus underground habitats. The green goo would eventually split off into various types, each best suited to the environment. There is no such thing as an “optimal green goo for every environment”, optimal refers to a specific set of conditions. Some tasks are hard for single-celled organisms to fulfill, which is probably why the uniform green goo that life developed as on earth diversified while spreading, and that bacteria, while ubiquitous, still aren’t considered the dominant life form.
2) As a hypothetical, even a planet transformed into a uniform green goo blob in space would be an environment in itself, allowing for niches for different forms of life (as long as there’s still some entropy to waste i.e. a mechanism for mutation). For a crude comparison, think of lava as goo on a different time scale.
Lastly, if you allow certain variations in your green goo, you could well argue that earth as it is now is an amalgam of various sorts of green goo—us. Especially from the vantage point of our basic goo unit—the gene. See the goo now?
(To me, the curious thing isn’t the eventual appearance of memetic-temetic based adaptability (intelligence), but of subjective experience to go with it. Good fiction novel on that: Peter Watts’ Blindsight.)
I disagree. The incentivising force for continued adaptation is changes in your environment (including your fellow other species). Static goo—or uniformly adapting goo—cannot be optimal for all of a planet at once, leaving room to be outcompeted by diversifying dark-green goo, which may eventually evolve into goo-man (I mean, hu-man):
A planet filled with homogeneous green goo would still be subject to offering advantages based on adaptation on two major axes:
1) Planets universally offer different conditions for habitats, pole temperature versus equatorial temperature, seismic activities on active planets, surface versus underground habitats. The green goo would eventually split off into various types, each best suited to the environment. There is no such thing as an “optimal green goo for every environment”, optimal refers to a specific set of conditions. Some tasks are hard for single-celled organisms to fulfill, which is probably why the uniform green goo that life developed as on earth diversified while spreading, and that bacteria, while ubiquitous, still aren’t considered the dominant life form.
2) As a hypothetical, even a planet transformed into a uniform green goo blob in space would be an environment in itself, allowing for niches for different forms of life (as long as there’s still some entropy to waste i.e. a mechanism for mutation). For a crude comparison, think of lava as goo on a different time scale.
Lastly, if you allow certain variations in your green goo, you could well argue that earth as it is now is an amalgam of various sorts of green goo—us. Especially from the vantage point of our basic goo unit—the gene. See the goo now?
(To me, the curious thing isn’t the eventual appearance of memetic-temetic based adaptability (intelligence), but of subjective experience to go with it. Good fiction novel on that: Peter Watts’ Blindsight.)