> we are ruthless in killing experiments early that do not prove valuable.
Ed Catmull of Pixar calls new ideas "ugly babies." Ugly because they're covered in warts -- aspects that are easy to change, but that doubters seize on because they destroy value. For example, the script for the first Bond film, Dr. No, had an intelligent monkey for a villain. Babies because they don't have value in their current form, they need more work and iteration before they have value.
How does slack identify technologies that don't have value now, but whose problems are superficial and fixable?