Nobel Prize in Chemistry: AI Predicts Protein Structures
This year's Nobel Prize in Chemistry was awarded to three scientists: David Baker, Demis Hassabis, and John Jumper. However, there was another key contributor to their research – artificial intelligence. The scientists developed a special AI model to solve a problem unsolved for 50 years. Let's examine the history to understand the scale of their achievement. Proteins comprise about 20 amino acids linked in long chains. These chains fold into three-dimensional shapes that determine the protein's function. Since the 1970s, scientists have tried to predict a protein's structure based on its amino acid sequence, but the huge number of possible combinations made it an incredibly complex task. In 2003, David Baker created a completely new protein from amino acids, unlike any other. However, the challenge of predicting protein structures remained. That's why Hassabis and Jumper developed the AI model AlphaFold2. Using artificial intelligence, they were able to predict the structure of nearly every known protein—around 200 million in total. More than 2 million scientists from 190 countries have since used AlphaFold2 and Baker's breakthrough to create new proteins for use in medicines, nanomaterials, vaccines, and sensors. Researchers have also better understood antibiotic resistance and even created enzymes that can break down plastic. None of these remarkable achievements would have been possible without artificial intelligence. This is why the next Nobel Prize belongs to some of the key pioneers in AI.Nobel Prize in Physics: Machine Learning for Neural Networks
In 2024, John Hopfield and Geoffrey Hinton were awarded the Nobel Prize in Physics for their discoveries and inventions, which made machine learning in neural networks possible. Hopfield and Hinton's breakthroughs were essential to the development of artificial intelligence. Let's examine their work more closely. John Hopfield created associative memory for neural networks, which allows images in databases to be restored. His network could correct or complete a picture but couldn't associate it with similar objects. Geoffrey Hinton developed a method for identifying database features and recognizing image elements. He implemented this method using Hopfield's network. Their combined work led to the creation of the "Boltzmann Machine," a neural network that can learn from internal data, solve combinatorial problems, and recognize key features in specific data sets. So, how does this invention connect to physics? Hinton used tools from statistical physics in his work on neural networks. Moreover, Ellen Moons, the Nobel Committee for Physics chair, noted that artificial neural networks are widely used in physics, including in the development of new materials. Even with these points, the debate continues among scientists about which field this technology truly belongs to.Which Scientific Field Does AI Belong To?
Jonathan Pritchard, an astrophysicist at Imperial College London, was among the first to question the Nobel Prize in Physics being awarded to AI. While he acknowledges the importance of artificial intelligence, he doubts whether it fits within the realms of physics or chemistry. David Vivancos, CEO of MindBigData.com, also shared his thoughts on AI receiving the prize."I am a big admirer of [Hinton and Hopfield], and they have created a marvelous discovery. But the thing is, it's not in the realm of physics unless we think that physics is everything," he said.Vivancos believes that if AI were placed within traditional sciences, it would be closer to mathematics. Given the concerns raised by several prominent voices, Virginia Dignum, a Umeå University professor, suggested it might be time to update the Nobel Prizes. She pointed out that many major discoveries now go beyond the traditional fields. She also noted that awarding AI in physics and chemistry shows the "triumph of interdisciplinarity" in technology.
"The real breakthroughs in science are no longer the domain of a single discipline but require a broad perspective and the combination of different insights," she said.There's no denying that AI has become part of nearly every aspect of life. It's possible that, soon, most scientific discoveries will involve AI somehow. Now that we've covered the opinions of various scientists let's briefly examine what the Nobel laureates themselves think about AI.