Posted By:
slacksSans serif fonts are not inherently any easier to read than serif fonts.
The reason this font Bill changed back to today (Verdana or Arial, depending on your browser) is easier to read is because the font it is replacing is Courier, a monospaced font.
Monospaced fonts assign the same space to every character, like a typewriter. Giving an "i" as much space as a capital "W" makes your brain work harder to read. Most modern fonts scale the footprint of the letter according to the actual letter size, allowing your brain to see recognizable groups of letters and read faster.