Leo says that most browsers can enlarge the screen text to make it easier to read. In most browsers, pressing "Ctrl" and "+" will make the text bigger, while pressing "Ctrl" and "-" will make the text smaller.
As we get bigger screens, text seems to get smaller because a higher resolution means smaller dots. Richard can go into the Windows' Control Panel and change the resolution settings to make his display show everything larger. Windows 10 also has a slider that will make the fonts larger.
Leo recommends reading this article from Kevin Marks on How the Web Became Unreadable.