On: As a software engineer, what's the best skill to have for the next 5-10 years?

[clay_to_n]

All of his points except the first two are even more valuable if you don't want to work on a team.

When working solo, there's nobody to insulate you when your soft skills are lacking.

[tracker1 → clay_to_n]

You can always try to work on projects, or portions of projects where your interactions can be minimized... You can be a contributor without having to have constant/heavy team interactions.

There are aspects of all of the above I tend to appreciate greatly, it really just depends.