145 operating systems in a PC !!!!
No !!! your vision is perfectly fine and what you are reading is correct. One of those super nerd kind of person got this crazy and at the same time cool idea of installing 145 operating systems in the PC. The 145 systems are 3 Dos , 5 Windows and 137 Linux distros.
There are obviously no practical reasons anyone would want to load 145 operating systems onto a PC but it is like climbing Mount Everest because it is there. The maximum operating systems i have loaded into my pc was three and that too because i wanted to try out ubuntu for a little long time along with XP and Fedora and i wanted to be free from the trouble of booting from a live cd every time.
This is unbelievably cool and crazy idea and he has written a tutorial sort of thing in the JustLinux forum and you can view that here.