We are the representatives of the cosmos; we are an example of what hydrogen atoms can do, given 15 billion years of cosmic evolution — Carl Sagan
Arun Kumar
Arun Kumar + AI
Evolution: What does it imply? What are its origins? Is there an external entity that determines the course of evolution? Does it follow a specific direction, from left to right or vice versa? Does it always lead to more complexity, or can it result in regression? These questions may seem daunting, but the underlying principles for answers may be simpler than we think.
When we encounter the term ‘evolution,’ we have a visceral understanding of its meaning. Simple definitions for evolution could be ‘a process of change in a certain direction’ or ‘a gradual process of change and development.’ The most common context that comes to mind when we hear the word ‘evolution’ is the evolution of biological forms.
In living organisms, evolution is a ubiquitous and a powerful concept. Beginning with the emergence of self-replicating molecules, it has led to the creation of incredibly complex and intricate biological forms, including us. Its omnipresence suggests that the underlying principles must be simple. Otherwise, how could it be replicated repeatedly across time (across different epochs) and space (across different continents)?
The process driving evolution is indeed quite simple. If certain conditions are met, which can readily occur in a variety of situations, it is, in fact, an inevitability.
The essential (or necessary and sufficient) conditions for evolution to occur are:
1. Availability of limited resources.
2. A population with varying traits that require these resources for its continuation.
3. Traits to vary in their relative efficiency in procuring resources.
4. Sufficient time: Time for the processes underlying (i.e., natural selection) to play out.
Over time, evolution is an inevitability in a population, provided there is variation in traits, a mechanism for these traits to be inherited, and a selective force for traits to be favored, the simplest form of which is the efficiency of traits in resource acquisition.
That is it.
Evolution transpires when a population with diverse traits competes for the limited resources essential for their survival. Over time, the traits that are more efficient in securing resources become predominant. The selective filter in this process, which determines which traits will dominate, is the relative efficiency (or fitness) of these traits in obtaining resources. In biological evolution this process is referred to as natural selection, with ‘natural’ indicating that the selection is a spontaneous process devoid of any external entity providing guidance.
The four conditions listed above can occur in many situations.
The presence of limited resources: Resources are indeed always limited. The universe may have a lot of energy, but it is not infinite. For every living entity on the Earth, the ultimate resource is the radiation from the Sun that falls in per unit area at a location.
Diversity of traits: Random fluctuations, like mutation during cell replication, guarantee that traits among a population competing for resources will differ.
Relative efficiency of traits: Differing traits will vary in their ability in procuring resources. One could be a devil’s advocate and ask why it cannot be otherwise? Well, you can advocate that, but it is not going to happen on its own and has to be forced.
Time: The universe has plenty of that at its disposal.
Whenever and wherever these conditions are met, a process similar to evolution and natural selection gets established. Some examples are:
Biological evolution: This is often the first context that comes to mind when we discuss evolution. Biological entities vie for a finite pool of resources. Those possessing traits that provide an advantage in resource acquisition have a higher likelihood of survival and reproduction. Over the course of generations, these advantageous traits tend to prevail.
Cultural evolution: Every day, 60,000 songs, each with unique traits, are uploaded to Spotify. These songs (and their creators) compete for the limited attention of listeners. Those with the most appealing traits not only survive but also gain popularity, and their appeal becomes timeless.
Societal evolution: New social norms and practices are constantly emerging. Those that benefit society, such as the development of agrarian societies that contribute to the advancement of the human tribe, are adopted, survive, and over time, become prevalent norms and practices.
Technological Evolution: New technological inventions and innovations, each with unique traits and marketing strategies, are continually emerging. They compete for limited financial resources or perceived customer niches. Those that align with customer preferences eventually dominate the market and establish their presence.
Psychological evolution: We may not realize it, but certain psychological preferences, such as discounting the future, opting for the path of least resistance, and a fondness for sugars, are all psychological traits that gave us an advantage in the past. Although they may be detrimental to our current environment, we are still beholden to them.
Linguistic evolution: New words, such as ‘finistophobia’, are coined with the intent of conveying specific meanings. Those that effectively meet the perceived need to express a particular sentiment or action become established, leading to the evolution of languages over time.
Economical evolution: Rise and fall of new startups or continuation of established corporations vying for the money investors have been another wonderful example of evolution.
The crux of the matter is that if you delve into any aspect of the universe undergoing change and development, where an unseen force is guiding the process, it is likely that the process similar to evolution of biological forms that is at work behind the scenes.
Ciao.