I have to take the opposite side from that of a number of prior respondents.
The thought that the railroads would continue to run without all the aid of electronics just because they used to in the days of steam engines is a complete fallacy. For starters, they ran on train orders to manually controlled interlocking towers issued by dispatchers who saw only the train sheet spread out before them. The towers are long gone, as are the train sheets and the dispatchers that used them. There's no 'fall back' to fall back to. It's long gone. "Proceed at restricted speed" for 100s of miles on a busy double track mainline? You HAVE to be KIDDING!
However, on the plus side, 16 years ago, as a Fedex Home Delivery driver, once every 6 months it was necessary to do my route without the hand scanner to prove readiness in the event of a scanner failure. I already knew all the roads in the 11 ZIP codes I covered every day. Working from the regular computer-printed list of stops to make that day, I had to deliver each one and mark on the sheet time of delivery. When I got home, I signed on to the appropriate web site and manually entered those times for each package. These days, the scanner/route planner device for Amazon, and likely UPS and FEDEX as well, tells every driver turn by turn and decides for them what package to deliver next and how to get there. Turn THAT off and the drivers are completely powerless to figure out how to do their route! Many don't even know the names of all the streets in their territory nor how to get there in a timely fashion.
I suspect that 'trip planner', PTC, and countless 'boxcar routing/scheduling' systems, et all, are nothing more than a good way to take the 'brains' out of people doing their job and depending on the computers. It's no different that the computers at fast food restaurants. Having worked at Burger King and Burger Chef in the 1960s, we had to do all the math in our head...no cash registers, etc. Giving a clerk an extra 8 cents for a $4.83 order is 100% bewildering to them. And to this day, I STILL know my pre-tax amount in my head before THEY do!
As for 'seat of your pants' flying, I used to regularly fly North Central Airlines in MN, WI, IL and MI. I made a number of takeoffs and landings in unstaffed airports, in everything from 12 seat puddle jumpers to DC-9s in blizzards, too. How many commercial pilots of today have a clue how to do that? Much less even find the airport and land in a blizzard when their previous routes were warm weather only cities?
As far as the railroads having some resiliency these days, you have to be joking!!! Long before EHH decimated the ranks of operating crew and equipment, the Wall Street powers were demanding reduction of employees (employee = 4 letter word in many financial circles) resulting in lack of rested crews whenever delays happen. Take the 'melt down', er...'freeze up' in Chicago 6-7 years ago that brought all the affected railroads to a near standstill for MONTHS after all the snow was gone! Causes? Lack of track maintenance staff to clear frozen switches, so all were straight lined (if possible) and lack of rested crews to relieve those who 'outlawed' enroute. All the result of 'right sizing' train crew staffing. Does ANYONE believe that PSR has any built-in resiliency whatsoever???
Between lack of staff, lack of equipment, and lack of know how, railroad resilliency, indeed, all transportation system resiliency is nothing more than someones' 'blue sky', completely untested and unproven plans.
And what about the electrical grid? These days, given the knowledge that it is almost 100% remotely controlled via the internet and that there's a finite number of internet-controllable 'switches' that turn on/off things associated with the grid, it's completely possible that a knowledgeable hacker sitting at home in Timbuktu can shut down anything from generators to power stations in the USA at will. For what it's worth, 35 years ago, while doing extensive programming at a regional Baby Bell, I wrote software on the mainframe that would access every telco switch (central office, eg, NPA-NNX, known to most as an 'exchange') in their region to extract make and model information as well as various hardware options. Each had their own 'protocol' to follow. As I had to access the instruction manuals for each to know how to do that, it would have been easy to reprogram and/or command them as desired.
Shut down the electrical grid and what happens? Texas is a text book example! Few in America today have any 'backup' plans whatsoever. It took a Halloween 2012 surprise sloppy wet snow storm with most of the leaves still on the trees (quite late for leaves in New England) that left me and most of western MA in the dark for a week or more before I finally developed, implemented, and tested a survival plan. How many businesses have done THAT? Oh...there's backup dispatching centers and backup generators for the railroads, but what if everything out in the field is dark? I could go on and on about grid vulnerability, but this response more than long enough. Oh...and as a '***' against a 'green' world with no fossil fuel transportation...how will the emergency generators be fueled when the lights go out and it's still snowing?