Whether something is hard or easy is relative, its relative in the sense that whether or not its hard or easy depends on whose doing it.

For instance, is Calculus hard? Most people would say it is and for many people it would be hard. For a child in the first grade whose just learning to add and subtract it would be impossibly hard. However, for somebody with a doctorate in engineering who works as a mechanical engineer Calculus might be a breeze for them.

So therefore whether or not something is hard is relative on whose doing it. This might sound obvious but its something that's often overlooked.