How the Webb Space Telescope Got So Expensive

First time accepted submitter IICV writes "Ethan Siegel of Starts with a Bang has done some research on how and why the James Webb Space Telescope's price tag ballooned. Quoting: 'Something wasn't adding up. How could the telescope be more than three-quarters complete after $3.5 billion, but require more than double that amount to finish it? Also, how did the launch date get bumped by three years, to 2018? And how did 6.5 billion become a disastrous $8.7 billion so quickly? So I did a little digging around, and perhaps a little investigative reporting as well, and got ahold of a Webb Project Scientist who's also a member of the Webb Science Working Group.'" Whether or not you buy the argument that the money's well-spent (at $5 billion or $8 billion, or either side of these), even the work in progress is beautiful.

Comments

Nobody has an incentive to finish it

[petes_PoV]

There are two commpeting forces at play here. Three if you include the people responsible for the budget.

The first and most obvious group is the scientists who first proposed the telescope and want to use it.

The second group are the people contracted to build it. These are the ones with all the power and the most to lose. Once the JWST is finished and launched they are (mostly) out of as job. As a consequence they have a selfish interest in making the design,development, testing and integration take as long as possible - simply to preserve their jobs and income. Now that's a fairly extreme description. I'm (almost) sure that nobody actually goes out of their way to sabotage it, or malinger. It's just that as with any project, there's always the possibility to improve things: tweak the spec. here, add another 0.05dB to a noise margin there ... and so it goes on; With no hard and fast deadline in the offing, there's nobody to say "it's absolutely got to be finished by <date>". Military projects in peacetime suffer exactly the same project creep and delays, for exactly the same reason.

The deadline is the key - that's why the moon landings happened on time. That's why wartime projects (when people are dying for lack of a solution) turbo-charge innovation. The JFDI attitude is paramount and without a launch date to work towards (or at least without a credible one, that absolutely MUST be met) the contractors are always going to be suggesting improvements, not overcoming delays and problems and finding more expensive options for problems.

Re:I know, I know...

[hey!]

Wrong scenario. It's more like this one I actually was in where I was asked to estimate the cost of responding to an RFP and came up with 150K. Boss asked me whether it could be done for 100K, and I told him by cutting our profits to the bone and taking the narrowest possible interpretation of the RFP, it was possible, but the risk was unacceptably high. Two weeks later signed a contract to do it for 50K. When I asked him why, he said he could spread the cost by selling it to more customers. I told him that only diluted our focus on the project and that to productize it would cost us almost a quarter of a million.

The upshot is that we couldn't afford to undertake the project except with slack resources. By the time we were done we had functional software, but it cost us the equivalent of 200K (which we couldn't charge). It took us so long to finish that we never got even the 50K from the customer, because management had turned over twice in the meantime and had no idea what the project was about. Then the boss sold the "product" to a second customer (over my objections) for 50K and that cost us another 200K, and we never saw that money either.

Fiscal responsibility isn't just not spending money on things you don't need. It's also not committing yourself to projects you aren't willing to pay to do a proper job on. Spending less than what it would reasonably take to do a project is like flushing cash down the toilet.