I am preparing for the IELTS. So I am learning to use high-level words as much as possible.
the infrastructure for e-commerce is so extensive that almost everything I need in everyday life can now be had at the tip of your fingers with a click
Does this one pretty much mean the same thing?
the infrastructure for e-commerce is so profound that ...
the word "profound" is a synonym for "extensive", though the Meaning of profound on Cambridge Dictionary seems more about feelings.
felt or experienced very strongly or in an extreme way