(1) Moulthrop began experimenting with the hypertext theory in the 1980s and has written several articles as well as many hypertext - fiction - works since then .
(2) Moulthrop began experimenting with hypertext theory in the 1980s , and has since authored several articles as well as written many hypertext fiction works .

Do these two sentences mean the same thing?

Select from: (i) no; (ii) yes;
(ii)