All new computing technology begins with a language interface. Early computers had a collection of switches that allowed the operator to enter binary machine instructions. Later computers had higher level text based languages that allowed the programmer to control their logic.
End-user oriented operating systems were developed that allowed the user to type text commands to evoke an action from the computer. Eventually we got graphical user interfaces built with languages like the ones that preceded them.
LLM are a new kind of language technology that allow technicians and end-users alike to evoke action from the computer in a new way.
But like the early computing, language was available to the end-user but not /accessible/ to them, the power of LLMs requires technical expertise to unlock. In time, LLM will recede into the background of computer user experience in favor of more mundane but usable modes of interaction.