Nature provides living things the opportunity to grow.
I purchased large new pots for my growing oak saplings which are outgrowing their old pots. I observed that one oak sapling in a larger pot grew faster and larger than the other seven in smaller pots. It is the same with the two walnut trees that my friend planted, my photo shows the difference in growth between the walnut trees in different sized pots.
The oak and walnut tree pots are a good metaphor that all of living things need the opportunity to grow to their full potential. Elephants are highly intelligent social animals, captive elephants in zoos become stressed and die younger than their wild counterparts. The octopus is a another intelligent species needing lots of stimulation to avoid stress according to scientific studies.
The human eye needs the stimulation of sunlight and the outdoors to develop properly. The BBC reports that a recent study of students in South Asian cities found 90% of the samples were short-sighted, a condition called myopia that needs glasses. Modern South Asian students spend a large part of their lives indoors studying or involved with electronic technology such as the internet. Young children in the UK are rapidly getting myopia as young as three because of being indoors and on computers for long periods of time according to the Daily Mail. A scientific study revealed the descendents of the Mutiny of the Bounty on Norfolk Island have the lowest rates of myopia in the world; whilst the study suggested genetics might be involved, I noted on Wikipedia an observation that “Islanders traditionally spend a lot of time outdoors.”
Living things are designed to live in nature, so to limit this exposure in any way causes a stagnation in personal growth in both mind and body, like I observe with my acorn saplings and the walnut trees limited by the size of their pots.