Q2DOS is an ambitious project aimed at porting the iconic game Quake 2 to the MS-DOS operating system. The discussion highlights the challenges of achieving playable speeds on older hardware, such as the need for fast processors like P3 or P4, compatibility considerations with alternative frameworks, and the nostalgic significance of programming in DOS environments. The comments raise interesting queries about performance benefits in real mode, potential similar projects for Linux framebuffer systems, and the implication of a world where graphical user interfaces (GUIs) were less dominant. There is curiosity surrounding the ease of porting older games to DOS, especially given its low-level hardware access capabilities, alongside questions about compatibility with alternatives like HXDOS.