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David Powell

David retired in December 2022 after decades of leading teams and building software for products you love (and a few you didn’t) at Apple, Microsoft, and Silicon Graphics. He loves hiking and cycling in the Pacific Northwest where he and his family have lived since 2001.

    Forum Posts

    Wi-Fi 7: Hit Snooze by David Powell

    15 replies

    AUTHOR: David Powell on 12/1/2024
    FIRST: Rick Connor on 12/1/2024   |   RECENT: G W on 6/2

    Winning the Debt Game

    24 replies

    AUTHOR: David Powell on 4/20/2025
    FIRST: DAN SMITH on 4/20   |   RECENT: William Perry on 4/30

    Hope is Not a Plan

    37 replies

    AUTHOR: David Powell on 3/9/2025
    FIRST: Nick Politakis on 3/9   |   RECENT: David Powell on 3/17

    Comments

    • Agree. One other point worth factoring into this: regardless of what draw rate you choose, if you have the budget flexibility to get by with less during tough years, when markets or inflation sour, your odds of long-term success go up. Unfortunately for us, both love travel. It's the biggest single item in our retirement spending. Years ago, with three busy kids, and insane work hours, our pre-retirement trips were mostly limited to North America. So many places and cultures left to experience.

      Post: Is 4.7 % the NEW 4.0 % Safe Withdrawal Rate

      Link to comment from August 18, 2025

    • Agree the burden and cost of a breach is not fairly shared still today but there has been some progress in that direction. The government’s responses to the watershed Solar Winds incident took two important steps forward. One step, by the executive branch, established a standard software bill of materials, which makes it easier for companies to know quickly what they need to patch when a vulnerability is reported (this likely happens daily or nearly so). It also required companies to attest, for the first time, that software they sell meets certain supply chain security criteria. The second step, by Congress, required more robust reporting after an incident is detected. I’m not a legal expert but it seems to me both steps closed key accountability gaps before fines could hold up in courts. But I’d guess other gaps remain today. It’s not a simple problem to solve.

      Post: Is It Safe to use ChatGPT on your iPhone?

      Link to comment from August 18, 2025

    • Bought this on Kindle last night and am part-way through it. Glad to see he’s using a more diversified portfolio than his original book. He takes a methodical approach to this question of what the draw rate should be to maximize portfolio income but I still believe he’s working hard to answer the wrong question. A better approach is, IMHO, Bill Bernstein’s steps from chapter 16 in his Four Pillars of Investing (2nd Ed.). Or Jonathan’s approach which you can read about in the Guide here. Trying to stretch a portfolio for every last cent of income is like reaching for yield with bonds: it works until suddenly, at the worst possible moment, it doesn’t.

      Post: Is 4.7 % the NEW 4.0 % Safe Withdrawal Rate

      Link to comment from August 18, 2025

    • True, though IEEE later glued on 802.1X for Ethernet and the IETF glued on IPSec for IP.

      Post: Is It Safe to use ChatGPT on your iPhone?

      Link to comment from August 17, 2025

    • I'm tripping at the threshold of Bengen's new book title. Spending more does not = enjoying more. To me the greatest joy comes from being financially unbreakable, so I will always have the joy of spending my time as I choose.

      Post: Is 4.7 % the NEW 4.0 % Safe Withdrawal Rate

      Link to comment from August 17, 2025

    • There are days I regret my networking contributions to the current internet. At the layers I worked at, and below, privacy was always a concern though a much smaller risk. Things really went sideways as the stack grew higher and the app crowd pivoted to its ad-based business model.

      Post: Is It Safe to use ChatGPT on your iPhone?

      Link to comment from August 17, 2025

    • Privacy seems a topic where wants and needs are even more personal than in finance. Given the massive data leaks from cyber attacks, a cynic might argue the privacy ship has already sailed. I use the ChatGPT app on my mobile and my desktop and have an account. The app’s memory feature, and its new task feature, are very useful. And yes, it’s clearly best to never share your most sensitive information like account numbers, or anything you’d only say to your spouse or closest friend. I typically allow apps to use location only when I’m using them, with a few exceptions both ways (some never, some always). We’re likely in roughly the same tech generation. My first computer was an HP 2000E minicomputer in ~1974. My first desktop was an HP 9836 in 1983 at work; the first one I owned was a “Fat Mac” in 1985. My first mobile was installed in a company car (Ford Taurus) in 1989. All of this as dinosaurs roamed the earth. 🦖

      Post: Is It Safe to use ChatGPT on your iPhone?

      Link to comment from August 17, 2025

    • Our annuities investment was less than 10% of our total portfolio and we have a lot of “dry powder”. The insurance agency we used to buy both asks a lot of questions, in their application process, which get at your concern.

      Post: Outliving Your Money? Let’s Do the Math on Annuities

      Link to comment from August 16, 2025

    • I love your question and mindset. Before I dive into my answer, I want to amplify Mark Eckman's point, which is backed by Wade Pfau's research (see Pfau's Retirement Planning Guidebook). Pfau found some people have a safety-first/commitment mindset/need in their retirement planning, while others are comfortable with a probability-based plan which provides more options/flexibility. So there is a psychological aspect of this to consider. Personal finance is personal. The portfolio alternative you're modeling in this comparison is perhaps based on average annual market returns for investments. But what if we start retirement in a period like December 1964 - December 1981, when the DJIA slid sideways for 17 years (DJIA 874.12 on Dec 31, 1964 and 875.00 on Dec 31, 1981)? Or we hit a drawdown period like Sep 1929 through June 1932 when the U.S. market fell about 86%? Not only do we not know the date of our death, and our partner's death, we really don't know what the next 20, 30, or 40 years of investment returns will be. We can look back at 125 years of market history, which provides a good measure of optimism, but we really don't know. YMMV. For me, it's not a question of SPIA vs. portfolio draws (or other portfolio income strategies). We have both. We're using SPIAs to create a safety margin in our financial plan. We hold two income annuities, one issued by NY Life, and the other by MassMutual, both financially strong providers with a long, successful history. Our SPIAs will top off our future Social Security benefits so the combined income covers all our core expenses, leaving income from our investment portfolio to cover discretionary spending, inevitable surprises, and legacy. Surprises can include an extended bout of inflation which shreds the buying power of our annuities w/their 3% COLA. It could also cover one of the annuity issuers "risking out" with no backstop by our state insurance fund. This approach makes managing our finances much simpler after I'm gone and my spouse is left to the task. That simplicity is also really useful for us.

      Post: Outliving Your Money? Let’s Do the Math on Annuities

      Link to comment from August 16, 2025

    • The modern version of disaster preparedness, in this cloud computing era, are core storage systems, built by Amazon, Microsoft, and Google, which keep multiple copies of your data within a datacenter in realtime, then geo-replicate it across data centers which exist in different regions. A massive earthquake or meteor could wipe out an entire datacenter and services wouldn’t go down or lose a byte of transactional data. I sometimes think of the scramble to restart financial markets after Sep 11, 2001. Today, with so much redundancy for resiliency, markets likely wouldn’t even go down during such a disaster. Dick: bottom line, your money is safe.

      Post: Have you seen your money lately? 

      Link to comment from August 16, 2025

    Articles

    Rookie Year

    David Powell   |  Feb 7, 2024

    FANS OF PROFESSIONAL sports know the excitement and agony of watching each year’s fresh crop of rookies. These young players have to relearn a game they thought they knew.
    The fact is, the strategies, tactics, intensity and winning habits of big league sports teams are tougher than those of college and minor league teams. That can leave rookies wondering what hit them when they move up to the big leagues.
    That’s how I felt in December 2022,

    For Safety’s Sake

    David Powell   |  Jun 24, 2023

    ON JUNE 15, THE NEWS was broken by The Oregonian of a massive hack at Oregon’s Department of Motor Vehicles, apparently leading to the theft of sensitive details about most of Oregon’s 3.5 million holders of a driver’s license or ID card. Incidents like this, along with the huge 2017 Equifax hack, give criminals cheap and easy access to key personal information that many organizations routinely use to verify our identities and screen our credit applications.

    Kicking the Habit

    David Powell   |  May 17, 2023

    REDUCTION IN FORCE. Layoff. Redundancy. For months now, the media have been running articles about technology companies shedding workers.
    In October, the headlines became personal: My manager eliminated my position. It was the first layoff in my 37-year career and an early 60th birthday surprise. My last day would be in mid-December. After another year of positive performance reviews and accompanying financial rewards, the news was a shocker.
    After that fateful call with my boss,

    On Guard Online

    David Powell   |  Feb 27, 2022

    IN AN ARTICLE last year, I wrote about the importance of strong online account security wherever you keep your savings and investments. I shared habits that should help you avoid the potentially huge financial losses caused by a cybercrime. I also urged readers to weigh a company’s commitment to security when choosing a home for their money.
    I’d like to give kudos to Bank of America for providing a good example of this commitment.

    Phoning It In

    David Powell   |  Nov 14, 2021

    THOSE PAPER COVID-19 vaccination cards weren’t designed for heavy use. Yet many jurisdictions require proof of vaccination to enter a restaurant, theater, museum or sports event. How do we avoid wearing out the card when we’re constantly pulling it out of our purse, pocket or wallet? Simple. Provide digital proof of your vaccine status.
    There are some state-specific mobile apps that do this, like New York’s Excelsior Pass, as well as proprietary apps like Clear and Azova.

    Reversion Can Be Mean

    David Powell   |  Aug 13, 2021

    MONEY MANAGER GMO recently noted that, “There are no bad assets just bad prices.” The occasion was the S&P 500’s price outrunning earnings by 70% over the seven years through March. GMO’s punchline: The same thing happened in the seven years that ended with the dot-com peak in March 2000. This, of course, did not end well.
    Two decades ago, I remember a friend telling me of steep losses in his retirement savings, the result of moving his entire 401(k) into aggressive,

    Losing It All

    David Powell   |  Jul 5, 2021

    OVER A PRODUCTIVE 30-year career that ended in 1950, Willie Sutton robbed as many as 100 banks for gains worth $40 million today—without ever firing a shot. That sort of bank robbery is rare now and, when it happens, customers don’t lose a dime, thanks to FDIC insurance.
    Today, Sutton—the Babe Ruth of robbers—wouldn’t waste time knocking over banks. Trillions of dollars held in millions of internet-accessible retirement and brokerage accounts are much softer and more lucrative targets.

    Staying Wealthy

    David Powell   |  May 24, 2021

    A CLOSE FRIEND’S LONG career in the motion picture business recently came to an end when the studio eliminated her job. Even before the pandemic, the industry was changing, so she wasn’t surprised or, for that matter, especially sad about getting laid off. She was lucky to receive a good severance package and is now ready to do something different. But finding the right job will likely take time, so carefully managing her cash through the transition period is crucial.

    Crossing the Stream

    David Powell   |  Feb 15, 2021

    IT BEGAN AS A TRICKLE. Now, it’s a flood—and my family’s been swept up in it. For the past decade, we’ve streamed on-demand movies and Netflix shows, but we also continued to pay far too much for live TV using either cable or satellite services. No longer.
    As Jannette Collins noted in a recent article, there are now numerous internet streaming services, including some free options. Our family has used some of these, but we still kept costly TV service for live broadcasts of news,

    Toys for Techies

    David Powell   |  Dec 14, 2020

    IF YOU’RE ONE OF THE lucky ones in this COVID-19 economy, with a job and the wherewithal to buy holiday gifts for friends or family, here are five eclectic tech gift ideas for budgets small, large and XXL:
    1. Ergonomic Desk. The pandemic has many of us working from home. After a couple months of this, my back, neck and forearms cried out for the ergonomic desk I had at the office.

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