Hi, I think English isn't your first language so, first, let me point out that telling someone "I'm not sure what your point is" comes across as rude and aggres

Hi, I think English isn't your first language so, first, let me point out that telling someone "I'm not sure what your point is" comes across as rude and aggressive. I wasn't "making a point". I was asking a question. My question is why the author said "possible": since this is an educational piece of writing, isn't it misleading to say "possible"? Am I right in thinking that basically all computers in common use now (e.g. phones, laptops, desktops, machines used in corporate data centers) have multiple CPU cores? And furthermore, that they are basically always executing instructions simultaneously on all cores? (Instructions from some userspace process or the kernel)