If you added the numbers in the post below and answered 5000 like I did the very first time I did this exercise several years ago...wrong!
Several years ago while attending a Durham Business Person's dinner, the speaker led this activity by using an overhead projector uncovering each line of numbers, line by line (something I couldn't do on the blog post). Upon uncovering the final number, a couple of people shouted out 5000, with the remaining 200 people shouting in agreement. The speaker led us through the activity one more time, uncovering each line and asking us to add line by line. Collectively, we arrived at the same wrong sum.
The correct answer is 4100. A couple of people commenting below even answered 4000 and 4090. Why did so many people arrive at 5000? The answer has to do with our confidence in adding. Most people add it right to 4090, and then screw up completely carrying the 1.
Remember, the more invested you are in one set of rules, the harder it is to see an alternative, the harder it is to change your way of thinking. Many of the people who arrived at the correct answer commented that they added the "big" numbers separately from the "little" numbers, then added them together...an alternate way to add than the more conventional way of adding straight down the rows of numbers.
My experience with the Durham group of business people years ago is a good example of the power of a group practicing Crowdsourcing (a really cool book), erring together as a majority.
This same type of investment in a set of rules prevented Sony Corp. from being the first company to produce a portable CD player. While Sony Corp. had pioneered the technology for the portable CD player, they shelved the technology. In 1979 Phillips Company contacted Sony to talk about establishing a world standard for audio CDs because Sony was known for their extensive research in this area. Sony's response was "That's a stupid idea because we've already checked it out." Sony had shelved the idea because their model was based on the size of the 12" LP, which would not be very portable and would be very expensive, therefore causing Sony to abandon the research.
Along comes Phillips Company, who thought "outside the box." Instead of abandoning the project, they abandoned their thinking that the CD needed to be the same 12" size as the LP. Instead they created a portable laser disk lass than 1/2 of the size, leaving the Sony Executives lamenting, as the Phillips Company is credited for bringing to market the first portable CD player.
Sony, known for its wonderful innovation and engineering, had been stopped in their tracks by their investment in an old set of rules. They were unable to look beyond the 12" LP to see their future.
The moral of the story for me is not to get too invested in a set of rules. Change is constant and the more open we are to alternatives, the more innovative we'll be.
Tomorrow, I'll post on how this thinking applies to church and who might be the best person to ask about how we should be "doing church".