Wall spent the next few years digesting the RFCs and synthesizing them into a coherent framework for Perl 6. He presented his design for Perl 6 in a series of documents called "apocalypses" – numbered to correspond to chapters in Programming Perl. , the developing specification of Perl 6 was encapsulated in design documents called Synopses – numbered to correspond to Apocalypses.
Wall spent the next few years digesting the RFCs and synthesizing them into a coherent framework for Perl 6. He presented his design for Perl 6 in a series of documents called "apocalypses" – numbered to correspond to chapters in Programming Perl  the developing specification of Perl 6 was encapsulated in design documents called Synopses – numbered to correspond to Apocalypses