Securely multiplexing the hardware resources of a computer is the job of an Operating System, not applications. There is no effective security implemented in ou

Securely multiplexing the hardware resources of a computer is the job of an Operating System, not applications. There is no effective security implemented in our operating systems as they are currently offered. There hasn't been since IBM XT machines with dual floppy disks and MS-DOS. I can hand a stranger $5 without having to trust them with access to my wallet. I doubt anyone, other than Jart*, can show me how a user can hand a document to a program they don't trust, without risking all of their stuff (and the OS) in Windows, Linux, Mac that is just as transparent and easy. You want programmers to spend time and effort routing around missing security infrastructure, which is always going to be futile, and they know it instinctively. *Because running a Linux executable in a browser offers a path towards LPE (Least Privilege Execution)