video of the iPod announcement
"Refined Supermarionation techniques were used in the South African children's science fiction show Interster in the late 1970s.
The 1980 Japanese TV series X Bomber was filmed in Supermariorama, a puppeteering process similar to Supermarionation.
Japanese puppeteer Kinosuke Takeda produced three Supermarionation styled television series between 1960 and 1970 including Spaceship Silica, Galaxy Boy Troop and Aerial City 008."
Your learning rate might decrease due to organizational issues (maybe processes have become too bureaucratic and limit your ability to iterate and launch quickly) or due to maintenance issues where the team doesn’t grow quickly enough to scale with the complexity of the product. The second makes it hard for you to switch projects and work on new things.