People seem to be conflating a couple different issues: clones as clones, and sci-fi clones as being grown faster than people.
These are different; if I have a way of growing people from embryo to adulthood in a short period of time, there's no reason I couldn't do the exact same thing with non-clones (either in vitro fertilization, or embryos created the old-fashioned way and then surgically removed, to say nothing of alien species like starfish that might have other methods of reproduction). Currently, a clone takes the exact same time to develop and mature as a normally conceived organism of the same species; the only difference is that the clone is a time-delayed identical twin of an already existing organism.
So, with clones as clones, what gameplay difference would it make? Remember that clones aren't identical any more than identical twins are, so they could and would have different ethoses and the like. Clone soldiers make some sense (presumably you are cloning your physically best specimens, as a poor man's version of gene warriors), but a broader society of clones doesn't do much different from any other society (other than let you grow replacement organs and the like, but that doesn't require you to clone the whole person, just grow some liver cells or what not).
Growing people faster in tanks is a separate issue, but that's just a tech that increases population growth rates.
These are different; if I have a way of growing people from embryo to adulthood in a short period of time, there's no reason I couldn't do the exact same thing with non-clones (either in vitro fertilization, or embryos created the old-fashioned way and then surgically removed, to say nothing of alien species like starfish that might have other methods of reproduction). Currently, a clone takes the exact same time to develop and mature as a normally conceived organism of the same species; the only difference is that the clone is a time-delayed identical twin of an already existing organism.
So, with clones as clones, what gameplay difference would it make? Remember that clones aren't identical any more than identical twins are, so they could and would have different ethoses and the like. Clone soldiers make some sense (presumably you are cloning your physically best specimens, as a poor man's version of gene warriors), but a broader society of clones doesn't do much different from any other society (other than let you grow replacement organs and the like, but that doesn't require you to clone the whole person, just grow some liver cells or what not).
Growing people faster in tanks is a separate issue, but that's just a tech that increases population growth rates.