Go back to bed Willie. There are two kinds of people in this world. Those who understand user interfaces (and get paid lots of money to know user interfaces) and those who don't. Yes, you can hover over every little icon for more information, but you shouldn't have to.
Do you have a smartphone? Did you know that Apple and Google define best practices around button and icon size? Of course, you didn't. Well there's a reason ... nevermind. You wouldn't understand.