Those who lived through the Industrial Revolution most likely:. i. never learned to use any technology.
ii. did not see any important historical changes.
iii. never did any shopping and always made their own goods.
iv. witnessed the development of new technology

Nextdoor is an instant messaging application for smartphones. new smartphone users find it easier to connect with friends and relatives through this mobile app when compared to other similar instant messaging applications. hence, it has the largest user base in the industry. thus, nextdoor app's value has increased primarily due to itsa. learning curve effects. b. economies of scale. c. economies of scope. d. network effects.