typical mac user.. i haven't seen a virus on any of my computers in a good decade.. getting viruses is more often than not user error.. not just because of the system.. going to shady websites.. clicking things.. reading emails hoping that the $1,000,000 that your lost uncle had left you is real.. basically being smart and using a good AV will keep you virus free... btw.. i have about a dozen programs running at the moment.. don't see any lag what so ever.. Why am I even responding to this? you're probably too busy figuring out which flannel you are gonna wear today
You do understand that "dual boot" means that you have multiple bootable operating systems on your hard drive? Yes, macs have no problem dual booting. Been that way for years, and was that way with ppc linux before the intel switch.
Oh I used Ubuntu a bit, but it sucked, imo. I have to use the most used OS and browsers to ensure all code is compatible with them.