Can any irregularity survive?
lLanguages are not completely regular.
l
l
l
l
l
l
lLanguages are not completely stable.
lIn the previous simulation, languages evolve to a completely regular fixed-point.
lWhy would holistic expressions survive?
lWhy do expressions change?
l
went
go+past
go
go+present
walked
walk+past
walk
walk+present