The document discusses the risks of investing in virtual reality (VR). It notes that while VR revenues are predicted to grow dramatically by 2020, total investment in VR since 2012 has significantly exceeded the revenues generated. Specifically, VR investment from 2012-2015 was over $2 billion while revenues were only $0.1 billion for that period. The document cautions that barriers to adoption like high prices and lack of quality content make widespread VR adoption challenging. It argues that mobile VR saw more success initially due to its lower price point and greater accessibility compared to platforms requiring expensive hardware. Overall, the document aims to highlight uncertainties still facing the VR industry that could impact the returns on investments being made.