https://twitter.com/13Choubey/status/613740156411981826
I understand it just fine, I'm saying it shouldn't apply to T20.
If you want an explanation, her it is, though I warn you it is quite technical so you might not follow:
Duckworth-Lewis Cricket Rain Method
Intro:
In the event a cricket match is being played and rain halts play, the Duckworth-Lewis (henceforth DLS) serves to calculate what target shall be set for the chasing team in the event of a shortened game, or determine the winner for a game ended by rain.
1a.1) This section deals only for World Cup games, whether ODI or T20.
1a.2) If any team other than South Africa is playing, hold on a minute, we'll get back to you.
1a.3) If South Africa is playing, the DLS will now go into effect in earnest. If South Africa is chasing, as the game gets shorter, start announcing small increases in required run rate that still give the fans some hope.
1a.4) As soon as play is set to resume, set an impossible target.
1a.5) Try whenever possible to keep adding to the target while reducing the balls allowed. If you can do this without even having a single ball bowled, that is preferred.
1b.1) If South Africa is batting first, announce a reasonable-sounding adjusted target within the shortned time.
1b.2) As soon as play is set to resume, proclaim the chases as victors as they have already scored enough, even if they have not begun their innings.
2a.1) If any other team is playing, just do what seems fair, unless South Africa will be impacted by the result, in which case ensure they get knocked out by having a lower run rate or something asinine like that.