Quantum Supremacy is "the goal of demonstrating that a programmable quantum device can solve a problem that classical computers practically cannot." Basically, a quantum computer would take minutes to solve a problem that would take a classical computer years. In late 2019, google claimed to have built a computer that does this. Although it is still debated whether or not google has achieved "quantum supremacy," the impact the technology will have is serious.
5G is the next progression from a 4G network. While 4G is about 10x faster than 3G, 5G is up to 100x faster than 4G. While building a quantum computer is still in its research stage, 5G is a reality and is currently being rolled out across the country.
Moore's Law "refers to Moore's perception that the number of transistors on a microchip doubles every two years, though the cost of computers is halved. Moore's Law states that we can expect the speed and capability of our computers to increase every couple of years, and we will pay less for them. Another tenet of Moore's Law asserts that this growth is exponential" (investopedia). It is believed that Moore's law will hit it's physical limit sometime in the 2020's, but it is still a good concept to understand when thinking about the exponential growth of computing power.