I have a question concerning Edge in Numenera. I studied it from the beginning and still have problems understanding it. As long as Edge is 1 all is clear, but later it becomes complicated. For example, in the GM section there is an example wherein a 10 level task (6th tier with specialization and level 2 asset) and having Edge 6 we still need 7 points from pool to reduce task to 0. Now, given that Edge reduces the cost from every level of effort (not to mention lvl 6 Edge gives us 2 levels of Effort for free) or even not reducing after initial 2 levels of Effort, it just doesn't add up.
Has anyone cracked this mechanic and can give me an example of it, or even better a small table describing it?