Different in terms of applying the same principle to produce "semantically compressed" code — instead of having each new dictionary entry be a reference to an o

Different in terms of applying the same principle to produce "semantically compressed" code — instead of having each new dictionary entry be a reference to an older one along with the new symbol, each new function will refer to older ones along with some new literal data. (If that still doesn't make sense, see the sibling comment to yours.)