Why is session state needed for concrete5? And can it be disabled?

Why is session state needed for concrete5? And can it be disabled?

References

Reference NO 1

http://stackoverflow.com/questions/13658577/why-is-session-state-needed-for-concrete5-and-can-it-be-disabled

Reference NO 2

http://stackoverflow.com/questions/6417613/how-can-i-disable-the-ability-to-approve-edits-in-concrete5

Reference NO 3

http://stackoverflow.com/questions/tagged/concrete5?sort=votes

Reference NO 4

http://www.concrete5.org/documentation/installation/installing_concrete5/

Reference NO 5

http://www.concrete5.org/community/forums/-/view/?search_keywords=cookies

Reference NO 6

#EANF#

Reference NO 7

#EANF#

Reference NO 8

#EANF#