Oh? I thought E made no demands; had no direction, has no 'plan'.
...create significant problems in terms of viability (resource limitations would be one1, and a static organism cannot adapt to a new environment2 ).
1. So, ya gotta have some kinda food to keep going?
2. Can FLEXIBLE organisms adapt?
1) I gave you two options: one is an organism that perpetually grows; the other is an organism that rejuvenates itself. An organism that perpetually grows would eventually run out of resources and die.
2) Yes. I gave you one potential example: we seem to be a sufficiently flexible organism. I also listed the specific trait that makes us so, and informed you that all other terrestrial organism lack this trait.