Well designed? A couple of off-the-shelf examples:-
The laryngeal nerve of the giraffe...
- Evolutionary "Detour": As a legacy from fish-like ancestors where the nerve traveled directly past the heart to the gills, the nerve remained anchored around the aortic arch as evolution lengthened the neck.
- Embryological Development: During fetal development, the nerve is trapped behind the descending heart/aorta, forcing it to stretch to keep the connection to the larynx.
- Inefficiency Example: Often cited as evidence against intelligent design and for evolution, as it is a "clumsy" solution compared to a direct path.
- Function: Despite its ridiculous length, it still successfully controls the laryngeal muscles for vocalization, breathing, and swallowing.
That anatomical arrangement is said to derive from our fish ancestors in which the route of the nerve is perfectly efficient.
Bipedalism and childbirth: The relatively recent evolutionary adaptation of our own species to walking upright has created a number of related issues from chronic back pain to greatly increased danger to the foetus as it passes through the restricted birth canal.
The birth canal in human females has had to narrow in order to walk upright since locomotion becomes increasingly inefficient as the pelvic girdle widens.
A well-formed system aligns all variables so that anything outside an acceptable result fails loudly, so noticeably that it becomes painfully obvious something unexpected occurred outside the tolerances of the designed system. There is gravity in a well-formed system that keeps everything operating in a well-tuned manner; so much so that if something resists that gravity, it becomes obvious. When it operates correctly, it all flows as expected, and each variable answers a need or asks for a need to be met to maintain the system’s harmony. What happens in a well-designed system: inconsistencies emerge naturally when viewed holistically.
If we apply this to life, do we see it as something that speaks loudly as something carried forward by a bottom-up design without any purpose, a totally undirected series of occurrences that molded itself without any outside involvement at all, or something so well designed that we can spot something anomalous at a glance?