Yeah,no resting periods......I bet Ian wouldn't have enough time to research computer moves......and Carlsen,well he'll have an even rougher time :P :P :P
Abolish Rest Days in World Chess Championships!

Unfortunately, in top level chess with matches lasting 4-8 hours daily, players cannot play without a rest day. The brain cannot maintain its capacity and we would have a bizarre tournament, being decided with tenebrous blunders. It could even be cool for us amateurs, but for those who are fighting for a world title it is necessary to have equal conditions, with a fair fight, and not make them play twelve days straight to see which brain could take the most.
The World Chess Championship is plagued by draws. In 2016, 10 of the 12 classical games were draws. In 2018, all 12 classical games were draws. So far in 2021, we have 5 out of the first 5 games being drawn. Indeed, the reality seems to be that the "Classical" World Chess Championship is actually being decided by rapid playoffs.
There has been some talk about how to change the format or time controls to reduce draws. Some say increasing the number of games will do the trick. But this just leads to more draws. Others say we should reduce the time control to something closer to rapid chess. But then it will no longer be classical chess, and they already have a championship tournament for rapid chess.
One proposal I have not heard from anyone is to eliminate rest days. Typically, every third day is a rest day, giving the players ample time to recuperate and strategize. I say no more! Let fatigue do the work of reducing draws. Will this result in "worse" chess toward the end of the match? Absolutely, and that is the point! Decisive games result from mistakes. What we desperately need right now is more mistakes because that will make the games more interesting (which will attract more headlines, a bigger audience, more funding for prizes, etc.).
Maybe some diehard chess fans out there like to see 12 or 14 draws in a row, so long as the games are played with as few blunders as possible. But I for one would rather see the monotony of perfectly-played draws interspersed with a few more less-than-perfectly-played decisive games.