For infrastructure technology, C will be hard to displace.
I'm not a person who particularly had heros when growing up.
Over the past several years, I've been more in a managerial role.
Any editing, software work, and mail is done in this exported Plan 9.
Obviously, the person who had most influence on my career was Ken Thompson.
I fix things now and then, more often tweak HTML and make scripts to do things.
I'm just an observer of Java, and where Microsoft wants to go with C# is too early to tell.
I've done a reasonable amount of travelling, which I enjoyed, but not for too long at a time.
C++ and Java, say, are presumably growing faster than plain C, but I bet C will still be around.
UNIX is basically a simple operating system, but you have to be a genius to understand the simplicity.