In a perfect world, this is how it would work.  The reason there is a 30 day window is because there is a limited amount of data that can be stored on the blockchain, and every post that is still open to voting and comment must effectively have an open ledger, in perpetuity.  And those open ledgers have to be managed on the blockchain

It actually used to be much shorter, i think 24 hours then 48 hours for the second payout then the post was closed.

Dan seems to have a lot of posts that deal with blockchain technology that can handle more and more transactions, so i suspect that something like what youre talking about is likely in the cards, at least at some point in the future.

>My proposal is that after the first payout the value of each upvote be determined, and paid out immediately.

That site you link to actually isnt accurate at all.  I don't know how theyre figuring it, but its wrong (ive seen that site before)

the above is not possible, as the payout value of each vote is based on who else voted for other things.  For example, lets say everyone else on steem gets eaten by cannibals.  Its just you left, and you vote for one thing.  Your vote gets to assign the entire reward pool for the day (which is like 200K steem i think).

So if you vote for one thing, that vote is worth 200K steem.  If you vote for 2 things, you will cut the value of your first vote, and your first vote will be worth 100k steem and your second will be worth 100K.  if you vote for 3 things, theyll each be worth 66K.

So in figuring out how much reward a post  should get, the system takes  solves for X

posts votes/total votes=x/total reward steem for blogging.  This actually happens minute by minute.  So right now, this post has 71 votes and that is a percentage of all the votes cast, and its getting that percentage of a certain amount of steem thats created per minute.

If it continues to get that specific percentage, at the end of the 24 hour window, it will get 11 cents.  If i vote and add a cent to that total, its not that my vote is worth 1 cent, its that your share of the total minute by minute reward pool is higher by an amount thats about 1 cent, if voting continues at the current pace.

Now after your post passes its first payout, its competing in a different pool.  A 30 day pool that awards less steem per minute, but that your eligible to compete for for a longer time.

And BTW:  im pretty sure the 1 month window is exact -- it doesnt get extended by upvotes the way the 24 hour window does.