Jamie Dimon, the Chase CEO and Tufts alumnus, blasted bitcoin today saying it is a fraud that will eventually blow up.

Bitcoin has enjoyed a tremendous run and may or may not be due for a significant pullback. It, however, is not likely a fraud and is unlikely to blow up.

In fact, bitcoin is clearly emerging as a currency free of federal regulations and central banks. Unlike Dimon, I and many others know that bitcoin is here to stay and its value will ultimately be many times higher than it is today.

A bank CEO like Dimon is entirely married to the current system and unable to see beyond his nose and to understand what is materializing in financial circles outside of his own bulwark. While many tertiary bitcoin-like currencies will prove to be worthless in time, bitcoin itself is emerging as a measure of value that the major banks will need to adopt and accept over time. It’s just plain obvious that it is a twenty first century currency soon to challenge in a big way centuries old currencies.

I remember the time when banks would regularly offer incentives (toasters, blenders, and the like) to open accounts, add money to an account, or upgrade to full service. Those were the times when they were competing with one another to entice you to do business with them. It was a heady time and bank tellers were some of the nicest people I remember.

But, it was a long time ago. Long enough to make me feel really old. I haven’t seen a bank go out of its way to get my business through personal contact and personal expressions of interest in decades. And, certainly the time when one had a special relationship with a particular bank or a particular person at a bank has long past.

So imagine my surprise when I received, in one day late last week, as many as six calls from six banks with which I do business, each reminding me of the special relationship we have and telling me how much they not only value my patronage, but that they are there for me and will do everything and anything to help me.

The calls were prompted by Hurricane Irma. And they appeared genuine. Each caller—not robo-callers – left me a phone number, told me to call any time and promised to be there for me in the event of any problems I had in the hurricane’s aftermath. A few of them even called a second time.

I’m not eager to assign motive for these call or similar calls I received from folks who worked for companies that insured my homes and cars.

But I must say that the calls made me feel good. I know they were motivated by an interest in cementing relationships, and even extending these connections over time. But, that’s fine with me and the calls felt awfully good, especially at a time of high stress. If national crises are necessary to bring back an old and very nice tradition of personal relationships, especially in the times we now live in, I am all in. I am grateful to these banks for their calls and intend to remember these kindnesses for some time to come.

While Donald Trump has certainly caused concern to some over his style and actions as President, few have been anything but jubilant over the impressive rise in the stock market since January. Actually, if one looks back to late 2008 when the market dropped 37%, we have all since enjoyed a spectacular ride up between then and now of around 300%.

There was a very interesting, recent article in the Business Section of the New York Times on one very important aspect of the huge rise since 2008 – portfolio drift - and the related implications for everyone in the market at this time. Obviously, one of the implications is that those of us in the market during some or all of that time have enjoyed handsome appreciation of stock assets and, by implication, feel ever more comfortable financially. But the Times’ article points to a related and worrisome impact of the steep rise in the markets to which most of us probably have not paid as much heed as we should have. And that is the relationship or portfolio mix between safe assets, like cash and CDs, and far more volatile stocks. (Actually, the Times articles speaks of bonds as a safe investment which is a serious error – bonds are especially likely to decline in value as much if not more than stocks as interest rates rise.) Most of us who own stocks balance our risk by also owning CDs and cash and, by so doing, ensuring that our investments are at least somewhat protected by the lower volatility of these reserves in the event of another large drop in the stock market.

But by now, given the huge increase in the stock market over the last eight years, the balance between stocks and cash and CDs in our portfolios, if we have not been paying attention, has shifted considerably. As the Times points out, an allocation of 60% stocks in 2008 would be far more likely – if no cash reserves were added – to be around 75% stocks. And this kind of allocation is risky for all but the most daring among us. Yet, this is also likely where most of us are at this moment.

And, that is not a good place to be under the best of circumstances. And, we are not anywhere near the best of circumstances at this moment in the nation’s history. In fact, it is hard to imagine a more vulnerable time for the market than right now – given all that is happening in the U.S. polity. The Times’ article is a clarion call to action, but one, I bet, few will act on. The market has just been too good for too long, and most of us, present company included, can’t wrap our minds around how volatile things are now and how likely it is that we will have a serious decline in the market in the weeks if not days ahead.

It is time to get our heads around the dangers ahead. Those who do, and who at least rebalance assets in favor of cash and CDs in light of portfolio drift, will be in a far better position to weather the storm we are absolutely going to have in the very near future.

See the best 1-year CD rates here.