2020s in science and technology

• DeepMind used artificial intelligence for the first time to predict protein folding. • Singapore became the first jurisdiction to approve the sale of cultured meat. • The vaccines produced by Pfizer/BioNTech and Moderna against Coronavirus disease 2019 became the first vaccines developed using messenger RNA and mark the fastest vaccine development and approval, taking only 10 months. • Oregon became the first jurisdiction to legalize the medicinal use of psilocybin for mental health treatment. == Energy ==

• QuantumScape revealed that it had created the first functioning prototype of a solid-state battery, promising to massively increase battery capacity. • The Chinese Experimental Advanced Superconducting Tokamak was turned on for the first time. The China Fusion Engineering Test Reactor is being planned for commissioning later in the decade. • Group14 Technologies has patented SCC55, a silicon-carbon composite, leading to 50% more in fully lithiated volumetric energy density than graphite used in conventional lithium-ion battery anodes. == Environmental sciences ==

• The United Nations has designated the 2020s as the Decade of Ocean Science for Sustainable Development. ==Space==

Air • In 2021, United Airlines revealed plans to purchase 15 supersonic Boom Overture aircraft by the end of the decade. Land • Waymo became the first company to offer self-driving car services to the general public without a human supervisor in Chandler, Arizona. • Autonomous delivery vehicles began transporting food to customers in Texas in 2021. ==Computing and artificial intelligence==

• Artificial intelligence-assisted coding began to emerge in the early 2020s. • El Salvador passed Bitcoin law to become the first country to give cryptocurrency and bitcoin the status of legal tender. ==Robotics and machine learning==

• In January 2020, Physicists discovered a unique metal with billions of quantum entangled electrons. • The Large Hadron Collider will once again begin operation in early 2021; the collider was shut down in December 2018 "to enable major upgrade and renovation works." ==Paleontology==