have somewhat a naive question, or three rather

1. did POW which rewarded miners with STEEM ended ?
2. if true to the above, can current POW that rewards miners with VEST be converted to STEEM  ?
3. if false to the above, when VEST and how can be traded on an exchange (by itself) or converted to STEEM?

all in all I am in general a long term oriented so don't mind be locked with VEST and then converted to something that can be redeemed not even the whole amount but a % of


thanks in advance! (+ great project you are rewiring in a revolutionary way, content creation/distribution and reward, quite amazing)