Both Doc Savage and Clark Kent had a 'Fortress of Solitude' in the far north which contained laboratories. Both of them would retire there for research and relaxation.
Co-incidence? Unlikely.
Doc Savage disappears shortly after the Second World War; no one knows if he died or retired.
Philip Jose Farmer suggests that Doc was growing increasingly frustrated as the years go by; certainly between the Nazi Horrors, and the growing Cold War he would have been justified in feeling that evildoers were winning. Certainly his idealistic patriotism would have been shaken - if not shattered - by Nagasaki and Hiroshima detonations.
He would also probably known of the 'hellish' deals made to trade pardons for data with Japanese scientists guilty of vivisection and torture; the whitewashing done to certain German rocket scientists, and of course, the growing truth of what our erstwhile ally Stalin had done - a monster whose 'labour camps' dwarfed Hitler's Die Endlösung der Judenfrage .
What would have remained of his belief in a shining future?

My father suggests that Clark Kent killed Clark Savage Jr., and took his laboratory; this certainly would have given Superman acsess to Savage's stockpile of captured and invented weapons, which would have given him a huge advantage in his struggles.
I think however, the similarity in their names goes farther than co-incidence.
I suggest that Clark "Doc" Savage Jr. created Superman.
The Man of Bronze creates the Man of Steel; harder, faster and certainly better suited for 'rough and tumble' work.

After all, the cover story of 'being from the shattered planet Krypton' is quite fantastic, but would allow Superman the cachet of being 'alien' and hence 'non-partisan' -- a non-partisan alien who spends his time defending the American way.
What are the odds that a highly advanced alien would find the U.S. the most appealing socially?
At that time (late 1940's, early 1950's) that nation was racially segregated, increasingly paranoid
and the wielder of atomic weapons.
I suspect that Doc felt he was a defender of his nation and could'nt leave his battlefield. I also suspect he created Superman as a 'fire and forget' weapon; indestructible, intelligent, pure of heart and deed; a steel dynamo who would never suffer as Doc had suffered; that would never know loss, or greif or doubt.

What would the Internet look like if rather than using the domain system, it used the Dewey Decimal System? That would assign a unique name for every webpage. the heirarchy tree would be a lot different, too. Where things are currently arranged under top level domains (say Yahoo or Google) under the Dewey Decimal Network Name System (DDNNS --> d2n2) the functions and information would be broken up. Google Search would be under one number, Google News would be under another, and Blogger under yet another; we would face the Internet in novel and intreasting ways. By changeing the trailing digit, one could step through all the search engines on the Net for instance...

Foremost amungst the Objects That I Should Possess (which includes such things as a 'Better Lathe' and a 'Quality Tap and Die Set') is a metal brake.
At least six times a year I need to bend up something from sheet metal, and at least half a dozen times I expend sweat, tears, and rages, on assemblages of 2x4 lumber and c-clamps. Today I needed - or rather, Liz needed - eight aluminium trays, each 10.5 inches by 22 inches, one inch deep and capable of stacking. I went for a primitive design, which works, but I am soundly disappointed by it. I merely folded the edges up by an inch, and folded them inwards slightly so that they reach the bottom of the tray above.

Perhaps - given a good brake, better quality aluminium ( I was using aluminium flashing from the local hardware store, tends to fatigue, quite soft) and a good edge rounder I could have eneded up with a better product. I don't know.
I was led astray by my minimalist desire to use a single sheet of aluminium for each tray without riveting anything on.
Instead, I need
A: some sort of positive locking together. I thought she'd need them solely inside a cooler, where the walls would keep the stack together, but she uses them in the fridge as well.
B: some sort of handle to make lifting them easier.
C: More stiffness and less flex.

I could use this as an excuse to build a brake this weekend. That would be a good excuse to break out the welder.

being at my job no longer drives me mad.
I had an epiphany - everyone around me is on crazy pills. Nearly everyone. Not quite all.
A value approaching unity but always remaining <1.
Its hard to be stressed by the hijinks and twitteries of people if you assume they have the same level of self-control and rational thoughts as four year olds.
Quod Erat Demonstratum.