//!
//! - A **single processor** executing instructions [out-of-order]:
//! Modern CPUs are capable of [superscalar] execution,
-//! i.e. multiple instructions might be executing at the same time,
+//! i.e., multiple instructions might be executing at the same time,
//! even though the machine code describes a sequential process.
//!
//! This kind of reordering is handled transparently by the CPU.