I know. And I'm saying if that was the rate they've historically added data to their dataset, it would've taken them 200,000+ years to get here. Which is why 100GB/mo is virtually nothing for NASA -- it doesn't match with their historical throughput.
That's the default value on the calculator, but all that does is prorate the storage demand over the period. Backblaze is entirely usage-based (speaking from experience; I'm a customer).