Behold I just discovered a 3rd one. You said, “high degree of certainty” You are trusting in a high degree of certainty, not absolute certainty and that requires faith.
Its not faith at all. Its an educated conclusion based on observation and evidence. Let me explain the difference. Lets say there is a stone on a platform with a trap door below it. I open the trap door and the stone falls to the surface below. I do this a thousand times, maybe ten thousand times and every time the same thing happens. You now ask me what i think will happen when you open the door for the 10,001th time. My educated opinion based on 10,000 observations is that the stone will fall to the surface below. Can i be absolutely certain of that? No but I can have a high degree of certainty. Someone can come along and challenge my opinion but they would need some extraordinary evidence to convince me otherwise ( ie. They could show me there is an electromagnet under the table which has been switched on and provide some evidence that the stone has magnetic properties so that this time it would actually be propelled upwards)
Faith is a very different thing. Someone with faith would see the stone fall 10,000 times just as I did but when they were told by someone in authority ( a priest maybe? a vision of god?) that the next time the trap door opened the stone would be propelled upward and a unicorn would appear in the spot where the stone had been they would believe it. They would believe it not because there was any evidence at all to support that conclusion but because they had faith. Its a very different concept.
Faith is something thats held on to by people who need definite answers and can’t live with the uncertainty of the universe around us. Science is a slow process. It may be hundreds or millions of years before we have all the answers. We may not even be smart enough to ever figure it all out, but science has done an incredible job of illuminating things that were once mysterious and thought to be the work of magical forces. I’m willing to accept some holes in my knowledge for now while we work out the rest. Thats not faith. Its a reasonable conclusion based on what I’ve observed so far. In the contest to explain the universe the score is currently SCIENCE: Billions, god: zero, but you never know. Maybe god will come down and do a bunch of miracles at the last minute and we’ll have to go into overtime. That is assuming the flying spaghetti monster doesn’t beat him to it.