The subjective reason for Nokia's bankruptcy is that Nokia is an old thing, and the old thing will eventually be replaced by something new.

The objective reason of Nokia's bankruptcy: Nokia doesn't know how to adapt, can't keep up with the changes of the times, doesn't understand the needs of users, and doesn't plan the future development, so it can't stand the social trend!

Other reasons for Nokia's bankruptcy: In short, whether in feudal society or capitalist society, everything has a ups and downs process, and Nokia has reached its peak. Decline and bankruptcy are inevitable, because things cannot exist against its objective laws!