Which product development approach revolutionized consumer telescope manufacturing in the 2010s, making advanced astronomy more accessible to amateur stargazers?

Modern astronomy combines cutting-edge technology with innovative product development approaches. Telescope manufacturers, astronomy software developers, and space observation equipment creators all face unique challenges in bringing their products to market. This trivia question focuses on how product development cycles in astronomy equipment have evolved to meet the demands of both professional and amateur astronomers.

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Computerized Go-To mount systems with smartphone integration
Vacuum-deposited mirror coatings using proprietary alloys
Multi-layer ED (Extra-low Dispersion) glass objective lenses
Carbon nanotube reinforced optical tubes for lightweight transport