blog post
Understanding AI through Darwin
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When Charles Darwin first introduced the theory of evolution through natural selection in 1859, he revolutionized the way we understand the development of life on Earth. Now, more than a century and a half later, a concept born out of biology is influencing technology, particularly artificial intelligence (AI). The correlation between Darwin’s theory and AI may seem tenuous at first glance, but dig deeper, and one discovers that the principles underlying natural evolution have profound parallels in the realm of machine learning and AI development.
Darwin’s theory posits that species evolve over long periods through random mutations and natural selection. In this process, those organisms with traits advantageous for survival and reproduction pass on their genes to the next generation. Over time, this leads to the evolution of species better adapted to their environments.
In the world of AI, algorithms undergo a similar kind of ‘evolution,’ albeit in a digital context. Just like biological creatures, AI systems go through iterative cycles of ‘mutations,’ with programmers or even the algorithms themselves making adjustments or introducing new elements. These algorithms are then tested for their ‘fitness,’ or their ability to solve specific problems or tasks. Those algorithms that perform well are kept and further refined, while less effective ones are discarded.
One practical example is the use of genetic algorithms in machine learning. In these models, potential solutions to a problem are treated like individuals in a population. These solutions are then ‘bred’ and ‘mutated’ to produce ‘offspring,’ which are evaluated for their fitness regarding the task at hand. The most effective ‘offspring’ become the foundation for the next generation of solutions, and the process repeats until a satisfactory solution is found. This is analogous to Darwin’s principle of survival of the fittest, where the most adapted individuals pass their traits on to the next generation.
While Darwin’s theory relies on random mutations and natural selection over a long period, AI development is guided and accelerated by human intervention. However, we are entering an era where machine learning algorithms are capable of ‘teaching’ themselves without human oversight, optimizing their performance through self-analysis and iterative learning. This phenomenon is known as deep learning, and it bears a startling resemblance to Darwin’s idea of natural selection—though on a radically compressed timescale. Instead of taking millions of years to adapt to environmental changes, algorithms can optimize themselves in a matter of minutes or hours.
Another similarity lies in the ethical implications of both fields. Darwin’s theory stirred debates on the ethical dimensions of evolution and the role of humans in the natural world. Similarly, the rise of AI is prompting discussions about ethical considerations, such as bias in machine learning algorithms or the potential for AI to surpass human intelligence, leading to unforeseen consequences.
While the fields of biology and computer science may seem worlds apart, Darwin’s theory of evolution has profound implications for our understanding of AI.
Just as natural selection explains the diversity and adaptability of life, so too can it shed light on the rapid development and ‘natural selection’ of algorithms in the field of AI. Both serve as fascinating reminders of how principles of adaptability, optimization, and selection are universal, cutting across multiple boundaries of science.
Author
Steve King
Managing Director, CyberEd
King, an experienced cybersecurity professional, has served in senior leadership roles in technology development for the past 20 years. He has founded nine startups, including Endymion Systems and seeCommerce. He has held leadership roles in marketing and product development, operating as CEO, CTO and CISO for several startups, including Netswitch Technology Management. He also served as CIO for Memorex and was the co-founder of the Cambridge Systems Group.