1st :
It is interesting to find theological lessons in the most ordinary things. Here, the iRobot vacuum cleaner shows how to eliminate the apparent contradiction between divine omniscience and human free will.
In this example, I will play the role of God. I look at the iRobot and I know that in 30 seconds it will enter the wall. Do you know about the obstacle? No, his touch sensor has not yet worked. So I know the future of the vacuum cleaner, but the vacuum cleaner does not know it. Does my knowledge affect the free will of the vacuum cleaner, its algorithm of work? In no way affects, moreover, his "electronic brain" is almost a black box for me.
Will I help the vacuum cleaner when it crashes into the wall? Probably not - he is designed for such situations and will handle it himself. But if it suddenly gets stuck, I will raise my ass and do a miracle (from the point of view of the vacuum cleaner).