[mehrdadn]

It seems you did not read the comments? You are comparing against cash. Nobody claimed cash was better. The entire discussion was in response to the comment [1] that "Chase Sapphire Reserve is easily the best card I own and I have an Amex Platinum", hence we were comparing against other credit cards (not against cash/debit/etc.), and as an example I explicitly compared CSR to the Uber card for you. Read the above discussion.

[1] https://news.ycombinator.com/item?id=16057816

[mrep]

I think his math is right but that still equates to 9.5$ a day on food and travel just to break even which is a lot.

I got the uber credit card which i think is a lot better since there is no fee and it is straight cash back (point value can change any time they want).