It was in the 1970s that the “Japanese invasion” … of automobiles like Toyota, Honda, and Datsun (now Nissan) and consumer electronics like Panasonic and Mitsubishi … pounded lots of nails into the coffins of America’s complacent manufacturing practices. Depending on the product it took somewhere between a decade and not quite yet for American products to achieve anything like parity in the global marketplace.

As American industry scrambled to regain lost ground, it changed the unwritten employment contract, from cradle-to-grave employment, complete with gold watches given for 50 years of service, to today’s at-will employment and layoffs whose sole purpose is to “send a message to Wall Street” that the company is serious about cost-containment.

A roughly the same time, businesses decided they had to protect their intellectual property.

“Intellectual property” is a phrase with a nice ring to it. It sounds official and important. Businesses invest an inordinate amount of time in mostly fruitless attempts to protect it. It’s property — it’s mine and you can’t touch it.

Also, it’s a concept that’s mostly outlived its usefulness.

The U.S. Constitution in no way recognizes such a thing. What it says is, The Congress shall have Power To … promote the Progress of Science and useful Arts, by securing for limited Times to Authors and Inventors the exclusive Right to their respective Writings and Discoveries.

The term “property” makes no appearance. Having an exclusive right to something for a limited time a lease more than a title, and unlike real property rights, copyrights and patents are explained as means to an end: promoting scientific and artistic progress.

Sure, this is academic nitpicking that’s so academic even academics have no interest in it.

Here’s what isn’t academic: The whole idea of patent protection now subverts its original purpose. Rather than promoting scientific progress, patents in their modern form actively impede it. But that isn’t this week’s point. It was the point of “How to fix the software patent system: Get rid of it” (KJR, 7/29/2013). Read it and weep.

This week’s point, taken from what’s probably the most controversial chapter of The Cognitive Enterprise, the new book I co-authored with my colleague Scott Lee, is that protecting your company’s intellectual property is, more often than not, both impossible and a bad idea.

It’s impossible because corporate permeability is a fact. Corporations act as though it was a problem, but it isn’t: Problems can be solved. Facts must be dealt with.

Large-scale corporate permeability probably got its start with the aforementioned change in employment security that resulted in large numbers of employees being pushed out the door. They took all the knowledge they’d acquired with them. It remained intact inside their heads where it was now available to any competitor that had the wit to hire them.

Thus was born the non-compete agreement.

In the era of the cognitive enterprise, corporate permeability has increased by orders of magnitude.

Remember the new formula for success — the one that’s supplanting the old “people, process, technology”? It’s customers, communities, capabilities. This is one reason permeability is a fact.

Back in the era of job security as an expectation, a person’s place of employment defined one of his (or, occasionally, her) most important communities. For some professionals, local associations held monthly meetings and constituted a community as well, but with few exceptions these ranked much lower in a person’s sense of affinity than even the local watering hole where people congregated after work.

Now? Between Facebook, LinkedIn discussion forums, and specialty sites on the social web, the sense of community connecting people with shared interests outstrips any sense of loyalty to an employer. Of course they do: They belonged to these communities before being hired for their current position, and expect to belong to them long after they’ve taken different positions in different companies.

They share what they know with their communities and become more adept at their trades as other members of their communities share right back at them.

Heck, with GitHub they share actual working code, too.

Is some of this valuable intellectual property? Yes it is, and the more it’s shared, amplified, tested, and adjusted the more valuable it becomes.

Community members help each other learn, solve problems, and figure things out. Which is why community is one of the driving forces behind capabilities.

Which is, in turn, why we firmly believe businesses that embrace and take advantage of this evolving permeability will, in the long run, out-compete businesses that distract themselves trying to seal their borders.

People are supposed to never be irreplaceable. But what utter nonsense that is. The only people worth hiring are irreplaceable. Why would you hire anyone else?

Steve Jobs was irreplaceable. What was Apple’s board of directors supposed to do — put someone else in as CEO who was interchangeable with a dozen other Apple CEO wannabes?

More than any other executive in modern times, with the possible exceptions of Microsoft’s Bill Gates and Amazon’s Jeff Bezos, Jobs decided what the marketplace needed and provided it. If the marketplace didn’t know it needed it, more often than not it found out.

Tim Cook is, so far as I know, a fine CEO. From my limited knowledge, though, he suffers from not being irreplaceable.

It’s about the people.

There was, for example, the guy I worked with who was smart, talented, and had good business judgment besides.

He was also a clown. His colleagues enjoyed his jokes but ignored his opinions. Management thought of him as an irritant, worth keeping around, but not worth listening to, let alone promoting to a position of responsibility and opportunity.

One day I asked him when he was going to give himself a chance to succeed. “I’ve been asking myself the same thing,” he answered. I offered my help, which mostly consisted of putting him in charge of things he was better at than anyone else. His transformation was remarkable to his colleagues. Not to me.

There was the supervisor I worked with who never spoke to his team in a group setting. He simply froze when called on to speak in public.

We worked on this, on the grounds that as a leader he had to be able to do it.

Some months later he let me know that the night before his son had gone through a childhood milestone, during which he made a short speech to his entire extended family to mark the occasion. It wasn’t just a milestone for his son.

When I rank my best and most important accomplishments, nothing else comes close to these.

It’s about the people.

This column marks the end of twenty years of Keep the Joint Running and its predecessor, InfoWorld’s “IS Survival Guide.” When I started writing I set myself three goals for each column.

The first: Every column had to have something new to say. It didn’t have to be a brand new insight … nobody has 52 insights nobody else has ever thought of in a single year … but it had to at least provide a new or different perspective.

So originality came first. Second came entertainment, or at least the avoidance of dullness. I figured nobody would get to my new insights if they dozed off before they got there.

And third was usefulness: If those who read what I had to say found themselves mystified as to what they were supposed to do with my entertaining and novel insights, what would be the point?

Sure, I’m small enough to be competitive about what you read here. While it’s more than a little annoying to know that no idea is truly legitimate until Gartner or McKinsey makes it their own, there is a certain joy that comes with getting there first, even if the only people who know about it are you and me.

But more than anything else, Keep the Joint Running has turned out to be about people.

Over the past two decades I’ve made hundreds of friends I’ve never met. Some of you write to offer your own insights. Many are complementary to my own. Others, even better, are contrary to my own. These are as precious to me in my own way as the One Ring was to Smeagol, because really, how dull would the world be if everyone agreed with me, all the time?

And, I’ve been delighted to learn, many of you have been able to put some of the ideas you find here to practical use. Of all the correspondence I receive, “You helped me out,” are the emails I value most.

(Well, I have to be honest. I also value the ones that say, “We’d like you to help us out,” quite a lot, too. A consultant has to pay the bills, after all.)

Everyone who reads KJR has a leadership role to play, wherever you find yourself. You lead, you’ll recall, whenever someone else follows you.

Title and authority have nothing to do with it. It’s about deciding that right here, right now, you know what should get done and it’s up to you to persuade those who can do it.

That’s leadership at its finest. When you lead … whenever you lead … do me a favor. Never lose sight of the central fact of leadership:

It’s always about the people.

* * *

Twenty years is a very long time to come up with a new and interesting insight, once a week, every week. On the other hand, If I stopped writing Keep the Joint Running I’d lose a lot of my motivation to look for them … and I’d lose touch with so many friends I’ve never met, along with those I’ve yet to correspond with.

Next year will be a bit different: When nothing new and interesting has occurred to me, I’m going share something from the KJR archives instead. Not that many of you have been with me for the past twenty years, so I figure some of my golden oldies will be new to enough of you that my re-runs will be just as useful as when they were first published.

I’ll be taking my annual week off, so there won’t be a new KJR next Monday. Between now and the week after that I hope you and yours have a wonderful holiday season, whatever holidays you choose to celebrate, be they Christmas, Chanukah, Kwanza, the New Year, or, as one of my subscribers suggested more than a decade ago, Sir Isaac Newton’s birthday and the perihelion.

See you in 2016.