How can the same public that spreads misinformation be trusted to correct it? A recent study by researchers from the University of Rochester, the University of Illinois Urbana–Champaign, and the University of Virginia finds that “crowdchecking”—X’s collaborative fact-checking experiment known as Community Notes—actually works.

Much research has been conducted to understand how people perceive and benefit from public goods. However, the effect of public goods on inequality, which can be swayed by public opinion, has not been well examined. In a new study, researchers explore how a better understanding of the benefits of public goods can change public opinion regarding taxation and public expenditure, potentially leading to reduced inequality through a larger government and higher taxation.

With the advancement of Internet applications, the global demand for broadband satellite communication services is incessantly escalating. Furthermore, there exists an exponential surge in the requisition for the capacity of satellite communication systems. In response to this evolving demand, the domain of satellite communication technology is progressively evolving toward the realm of high-throughput satellite (HTS) communication systems. The typical technical characteristics of HTS are: (a) the satellite adopts multibeam technology for beam overlapping coverage of the service area, which improves the quality of the wireless link while realizing the spatial dimension segmentation; (b) based on this, the system adopts multiple frequency multiplexing to improve the communication capacity of a single satellite; (c) gateway stations are tightly coupled with user beam clusters to complete two-hop communication, which makes multiple gateway stations share the communication resources of the same satellite, forming a spatial isolation of the gateway stations, and once again realizing the frequency multiplexing of the gateway station links. A key requirement for future multibeam broadband satellite communication systems is the ability to flexibly adjust beam capacity according to changes in business distribution, in order to meet time-varying business requirements. Beam hopping technology provides an efficient solution to achieve the efficient use of frequency resources and power resources. At the same time, the use of beam hopping makes the beam hopping of satellite payload need to match the business signals of ground signal stations, bringing about the need for synchronization of beam hopping between satellite and ground.