Viewing profile — ww520

Succinct data structures. Finished the indexable bit vector, with nanosecond rank/select operations. Working on the range min max tree based balanced parentheses succinct tree stru…

Speaking of AI stock, what has happened to NOK?

Charged is not convicted. Anyone can be charged with anything if the prosecution is vindictive.

As a speech.

You missed the lawsuits by everyone else.

You still need to build the power infrastructure to the rural areas. Build the infrastructure for the people, like roads, sewage, water, buildings, etc. Navigate the regulation and…

Space DC make sense when local governments and communities don't want DC built on Earth. Space DC is an engineering and finance problem, not a problem in legal/permission, real est…

For small arrays that can fit in L1 cache, it's ok to do more loops. For bigger arrays, cache miss could remove all the gains.

When I bought my car, it had no Car Play or Android Auto. Upon some investigation I found out that both of them were installed on all the current models. It’s just disabled on the …

One use of focused RF detectors is locating hidden cameras via scanning their WiFi or Bluetooth RF signals.

I have a heat pump based water heater installed in the garage. One side benefit is the garage got cooled down. It used to be that the garage got very hot during hot days. Now it’s …

What does it take to add support for a router? Support for tp-link ax5400 seems missing for a long time.

How's Alpine? Most of the containers seem to pick Alpine as the basis OS.

It's straight corruption, no matter of big or small business. It should have been randomized blind selection of business who have existed for more than a year, and the granted mone…

This is an interesting read. You can solve the same problem with Range Min Query Tree. The query for balanced or unbalanced parentheses is O(log N). A two or three level RMQTree ca…

I think he didn't know cellular well enough and thought a wireless phone was unlocatable because it was mobile and not tied down to a landline. As a physicist, Shimomura would have…

Oddly, since the Covid time, I haven't caught a cold or flu once. I'm not sure it's the vaccines, the flu shots, or the less physical contacts on things overall. I still go to crow…

I read the book by Tsutomu Shimomura, who caught Mitnick's hacking and tracked him down. It's a fascinating read. He was able to locate Mitnick in physical world based on his onlin…

That's because they've reclassified unemployment status. Anyone working 1 hour out of N months is not considered unemployed.

"Is anyone still using emacs?" Of course. Emacs has been my stable editor over many years, handling many languages that came along, surviving many other IDEs that came and gone (th…

Up to 40% unemployment or very low employment.

Plus electricity, labor, and maintenance?

The California state budget for 2026-27 is at $248 billions. Life is good for the state politicians.

Facial and gait recognition tech make the pedestrian vs car point moot.