Hi, My name is Greg Grothaus and I look like →

I make software at Google and for myself. I like to adventure into the backcountry when I have spare time.

You have found my blog, Gregable.com.


Recent Posts

  1. Indexed Annuities

    Anatomy of a financial scam.

  2. Sierra Jewels

    Trip report from hike along the PCT and JMT starting at Agnew Meadows trailhead near Mammoth.

  3. Mt Kosciuszko

    Trip report from summiting Mt Kosciuszko, the tallest peak in Australia.

  4. Social Security Tool

    I spent some of my holidays building a website to help folks understand their United States Social Security benefits.

  5. Yukon River Canoeing

    8 day canoe trip report from the mighty Yukon river in Canada. Abandoned steamboats, grizzly tracks, northern lights, fly fishing, lake storms, and lots of fun.

  6. Gregable.com Blog Redesign

    Writeup of decisions made while redesigning the gregable.com site to be a fast, responsive, AMP website.

  7. Regular Expression Crossword Puzzle

    A crossword puzzle designed for geeks, every single clue is a regular expression.

  8. Elkhorn Slough Kayaking

    Elkhorn Slough in Northern CA is the best place to check out otters on a kayaking trip.

  9. Green River Canoeing

    Five day canoe trip down the Green River to meet up with the mighty Colorado.

  10. Mission Peak residents block hikers

    The wealthy homeowners who built homes at the base of this urban, public-access peak are fighting to restrict access.

  11. Mt Rainier

    Six day mountaineering and summit of Mt Rainier.

  12. Degrees Gregable

    My proposal for an improved temperature scale, clearly superior to both Celsius and Fahrenheit.

  13. One year of solar

    It has been roughly one year since installing solar panels on my home, and now I can compare some real data to my theoretical estimates.

  14. Mt Olympia hike

    Trip report from a day hike up to Mt Olympia, a lesser-known and tranquil mountain in Mt Diablo park.

  15. Majority Voting Algorithm

    Imagine that you have a non-sorted list of values. You want to know if there is a value that is present in the list for more than half of the elements in that list. You want to accomplish this as efficiently as possible.

  16. Residential Solar Financials

    In 2013 I researched and installed a set of solar panels. This is an in-depth guide to how the economics work out.

  17. Yosemite High Sierras

    6 day trip report hiking between Yosemite's High Sierra camps.

  18. Canyon Creek, Trinity Alps

    My first trip to the Trinity Alps takes us up Canyon Creek to a pair of lovely lakes.

  19. Social Circles

    An early look at my personal 'social graph'. This includes an actual image mapping out all of my online social connections in Facebook.

  20. Why you should know just a little Awk

    An Awk tutorial by example. Learn practical Awk incantations in just a few minutes.

  21. Mt. Kilimanjaro Summit

    Trip report from my attempt to summit the continent of Africa's highest peak, Mt. Kilimanjaro, which stands at 19,341 ft (5,895 m).

  22. Lassen Cinder Cone and Snag Lake

    Trip report from my first backpacking trip with Cristin. An epic and mellow backpacking route through some of the volcanic terrain of Mt. Lassen National Park.

  23. Reservoir Sampling

    An algorithm for evenly sampling elements from a stream of elements, without first knowing the length of the stream.


I can be found in a few other places too: