Comment by DanielHB

Yeah I agree with you, if you see these programmers doing very advanced stuff they often have degrees in physics and the like. The hardest problems in CS today are all very math-focused.

The original quote from the OP was about why Lisa Su decided to go EE bachelor though and EE bachelor indeed is one of the hardest ones out there.

What I was trying to highlight is that although EE is harder, CS has a bigger workload due to all the personal projects you have to build. But given enough time and persistence you can get a CS degree even if you are not the sharpest (speaking as someone who is not the sharpest). To be honest in my own degree I didn't have much trouble with the content (besides a few math-heavy classes), just the workload.

I remember me and my roommates study time, my time was usually implementing algorithms on my PC while theirs was usually pouring over text-books and solving differential equations. Although one of my roomates was a huge nerd who had to get max grades, he spent much more time than me studying. The other one spent about the same amount of time as me.