the case with the Virtual Ganjali Khan Project). Starting in the early 2020s, virtual reality has also been discussed as a technological setting that may support people's griefing process, based on digital recreations of deceased individuals. In 2021, this practice received substantial media attention following a South Korean TV documentary, which invited a griefing mother to interact with a virtual replica of her deceased daughter. Subsequently, scientists have summarized several potential implications of such endeavours, including its potential to facilitate adaptive mourning, but also many ethical challenges. Growing interest in the metaverse has resulted in organizational efforts to incorporate the many diverse applications of virtual reality into ecosystems like VIVERSE, reportedly offering connectivity between platforms for a wide range of uses. Concerts On February 21, 2019, DJ Marshmellow hosted a concert in Fortnite. Travis Scott performed on Fortnite on April 23, 2020. In June of that year, Jean Michel Jarre performed in VRChat. In July, Brendan Bradley released the free FutureStages web-based virtual reality venue for live events and concerts throughout the 2020 shutdown, Justin Bieber performed on November 18, 2021 in WaveXR. On December 2, 2021 Non-Player Character performed at The Mugar Omni Theater with audiences interacting with a live performer in both virtual reality and projected on the IMAX dome screen. Meta’s Foo Fighters Super Bowl VR concert performed on Venues. Post Malone performed in Venues starting July 15, 2022. Megan Thee Stallion performed on AmazeVR at AMC Theaters throughout 2022. On October 24, 2021, Billie Eilish performed on Oculus Venues. Pop group Imagine Dragons performed on June 15, 2022. Concerns and challenges Health and safety There are many health and safety considerations of virtual reality. A number of unwanted symptoms have been caused by prolonged use of virtual reality, and these may have slowed proliferation of the technology. Most virtual reality systems come with consumer warnings, including: seizures; developmental issues in children; trip-and-fall and collision warnings; discomfort; repetitive stress injury; and interference with medical devices. Some users may experience twitches, seizures or blackouts while using VR headsets, even if they do not have a history of epilepsy and have never had blackouts or seizures before. One in 4,000 people, or .025%, may experience these symptoms. Motion sickness, eyestrain, headaches, and discomfort are the most prevalent short-term adverse effects. In addition, because of the virtual reality headsets' heavy weight, discomfort may be more likely among children. Therefore, children