Talk:Leveling/@comment-27065886-20151027093020/@comment-27176258-20151108035655

X-axis is time (or level in this case) and Y-axis is growth.

The easiest way is to think of it like this: the more tilted the line is, the more stats/level is gained. An S-curve doesn't actually look like the kind of 'S' you see right here, but more like a flatter, stretched out version. At the start, the line is very flat, meaning not a lot of stats/level. Around the middle part, the curve (and the S if it went straight from the bottom squiggle to the top one) ramps up in a steep tilt, meaning a lot of stats/level. At the top, it once again becomes rather flat.

Pretty much any image on google for a search of "S-curve" should help you follow the above.