### How long does it take to count to 1 million? 1 billion? 1 trillion?

Posted In: Math | Programming

My son likes large numbers (like septillion, googol and googolplex) and once asked me how long it would take to count to septillion (which is 1 followed by 24 zeros).  I told him it would take longer than the age of the universe to do that, so he started working his way down.  He asked me about counting to one million.  I did a little math (assuming one number per second) and got about 11-12 days . . . but then thought, the large numbers (like 658,243) take more than a second to say.

Looked on the web a little to see if anyone else had done a more sophisticated calculation.  Lots of calculations were like my own (assuming one number per second).  Others acknowledge that it would take longer for large numbers and made assumptions about what that would be.  But nothing definitive, so I thought I’d make one.  This counting calculator is based on the number of syllables in every number and counts all the syllables you’d have to pronounce in order to count from one to one million (or other numbers).

### Tesla Model 3 Sales Tracker

Posted In: Energy | Technology | Transportation

Tesla has been building innovative and industry-leading battery-powered cars for about a decade, starting with the Roadster, and then the Model S and Model X. The company unveiled the Model 3 (their first mass-market electric car with 220 miles of range, priced at “\$35,000”), in early 2017 and hundreds of thousands of people put down a \$1000 deposit within a few days. Overall, the number of these pre-orders total about half a million! It was impressive for a car most people have not driven or even seen.

The company also has had optimistic timeframes for producing and shipping these vehicle: they had originally estimated production rates of 5000 cars/week by the end of 2017 and 10,000 cars/week(!) in 2018. That’s Civic or Camry levels. These have since been delayed due to reports of “production hell” in scaling up mass production for the vehicles. Given the unprecedented demand and production challenges as Tesla transitions from niche automaker to mass-market production, I thought it would be worthwhile to track the sales of Model 3s as they are built and shipped to customers with the Model 3 Sales Tracker. Average sales price has been far above the \$35,000 price initially announced. Production has reportedly passed 5000 cars/week intermittently, if not continuously, in the summer of 2018.

### Financial Freedom Calculator

Posted In: Financial Independence

The goal of the freedom calculator is to let you know how close to financial independence (i.e. freedom) you are, measuring your progress in terms of freedom days.  The key determinants for retirement are total retirement savings and annual spending.

Freedom days refers to the number of days that your retirement savings could sustain you (without working) each year (indefinitely) at your current spending level. Once you reach 365 freedom days per year, you’ve got enough money saved up to never have to work again. The freedom date then tells you the date through which your retirement savings would support you each year.  For example, if you have 100 freedom days then your spending could be covered through April 10th, each year.

How close are you to 365 “freedom days”?

### Steve Jobs iPhone introduction wordcloud

Posted In: Technology

My latest “visualization” is a wordcloud of Steve Jobs’ keynote address when he introduced the iPhone in 2007. (more…)

### Bay Area Air Quality from Napa and Santa Rosa Fires

Posted In: Environment

The fires in Napa and Santa Rosa California have been burning for about a week and a half so far and these fires have resulted in numerous deaths (with many more missing), significant property damage (over 4000 buildings), and forced the evacuation of tens of thousands from their homes.  Luckily, these fires are mostly contained at this point with incredible work from firefighters and as well as from the weather (link to fire status on the CalFire’s websites on the Tubbs, Atlas, Nuns fires).

### Bryce Love’s Awesomeness (updates 10/14/2017)

Posted In: Sports

Here is the 2nd update of the original graphs that I made of Bryce Love’s rushing awesomeness.  Bryce Love is still in a different league from all other running backs in the college football (and now has almost 300 yards more than his next closest competitor, and more than twice as many rushing yards as Saquon Barkley of Penn State).