"We think we've solved that problem this time. All skills will make you go up in experience level, but the higher the amount of experience you have in a skill, the greater the impact it has on leveling."
No idea what he means here, could someone explain in oblivion terms please?
In Oblivion, only your Major Skill affected leveling, while in Skyrim, all of your skills affect your leveling. Say for example, you have a Destruction skill of 27, and you raise it to 28. That attributes say 0.8 "experience" towards your next level. You also have a 1H Weapon skill of 76, and you raise it to 77. That attributes say 1.5 "experience" towards your next level.