"What I cannot create, I do not understand," was written on Richard Feynman's blackboard after his death. Feynman, a 1965 Nobel Prize winner in physics and celebrated teacher, believed that true understanding comes from the ability to create. Today, with rapid advances in biology and chemistry, the boundary between science and myth is blurring. Scientists are working to unravel the fundamental mysteries of life, and some believe that creating artificial life is not only possible but has already been achieved. In 2010, Craig Venter, a pioneer in synthetic biology, and his team created the first cell with a synthetic genome. This was a bacterium of the genus Mycoplasma, which naturally has a genome of about 1 million nucleotides, much smaller than the 4.6 million nucleotides found in the commonly used Escherichia coli. To make this synthetic cell, Venter’s team first digitally modified the genetic sequence of Mycoplasma mycoides, reducing it to what they believed was the minimum necessary for life—473 genes. They then chemically synthesized this genome, a painstaking and expensive process. The result was JCVI-syn3B, the first synthetic cell with the smallest genome of any lab-cultivated organism. Following this breakthrough, researchers have turned their attention to more complex organisms. In 2019, a modified E. coli with a unique genetic code was created. This marked a shift toward eukaryotes—cells with more complex structures, found in all plants and animals. A European research group is now working on creating the first synthetic eukaryotic genome, that of the yeast Saccharomyces cerevisiae. This yeast is widely used in industry for producing beer, bread, and pharmaceuticals. Researchers have already generated all 16 of its chromosomes and are now assembling them into a functional cell. The completion of this synthetic genome is expected soon. Some scientists, like Job Boekhoven at the Technical University of Munich, argue that simply copying a genome is not enough to define artificial life. They draw inspiration from the myth of Theseus’ ship, where all parts are gradually replaced until nothing remains of the original. In a similar way, researchers are replacing the genome piece by piece. However, Boekhoven questions whether such a process truly creates life without fully understanding it. He and others believe that life can be defined by a self-sustaining chemical system that can evolve, not just by the presence of a genome. Meanwhile, researchers are exploring alternative approaches to creating artificial life. Cees Dekker at the Kavli Institute in the Netherlands has developed artificial cells that can divide. These are tiny lipid sacs that mimic the simplest form of a cell. Job Boekhoven has also created artificial cells that can assemble only when a specific molecule is present, simulating a form of competition. He aims to create an artificial cell that can divide, feed, and evolve on its own. He predicts that such a cell may be created within the next decade. Another area of research, known as "mirror life," involves creating biological systems where all molecules are reversed. On Earth, DNA and RNA are right-handed, while proteins are left-handed. Scientists at Westlake University in China have already created mirror versions of DNA and RNA. Their goal is to build a mirror ribosome, a complex molecular machine essential for protein synthesis. If successful, this could lead to the creation of mirror life, which would function similarly to natural life but with reversed molecular structures. This has raised concerns, as mirror life could potentially outcompete natural life forms without facing natural predators or immune defenses. As a result, the scientific community has called for regulations to manage such research, ensuring it is conducted safely and responsibly.