What would have happened if Apple gave up after the invention of their touchscreen device known as ‘Newton’ back in 1993 if this disastrous invention had led them to never develop another touchscreen mobile device?

In 1993 the world wide web was not yet mainstream. Multi-touch technology was not available. Users used touchscreen with a stylus. The Newton was so unpopular it sold less than 50,000 units in its first four months.

"Sometimes when you innovate, you make mistakes. It is best to admit them quickly, and get on with improving your other innovations."

Steve Jobs

https://www.funchap.net/steve-jobs-quotes/