HNHacker News
TopNewBestAskShowJobs

frhack

4 karma · joined June 6, 2020

submissionscomments
frhack··on A receipt printer cured my procrastination
If games work, why not gamify your idea? The printer and paper approach doesn't work well for people on the move. We need a pure online version that's accessible from everywhere: home, office, customer sites, vacation spots, and during commutes. Even better: add a voice interface too.

"Hey assistant, what do I have to do?"

"1. Send email to Bob"

"2. Clean your desktop"

"3. Read paper XYZ"

"...and more"

"OK assistant, set 1 as done"

"Congratulations, great job! You achieved the bronze badge this week by completing 70% of your tasks!"

frhack··on Numbering should start at zero (1982)
Starting from zero saves memory. If I have a variable used as an index for an array of 256 elements, starting from 0 allows me to store it in a single byte. If I start from 1, I need two bytes, effectively doubling the memory usage—an unnecessary 100% increase. Now, multiply this inefficiency across every instance where programs encounter a similar situation.
frhack··on $2 H100s: How the GPU Rental Bubble Burst
Artificial Intelligence will replace many jobs and business. So the race is on to become the main AI providers of the future. For the big players this is an opportunity and a necessity. The question is: - how long will this race last? - how long will NVIDIA be the main GPU provider and beneficiary of this race?

Predicting the future is very difficult, especially in an unprecedented revolution like this. As Nobel Prize winner Parisi said: "No matter how hard you try to predict the future, the future will surprise you"

frhack··on Useful Uses of cat
I use cat a lot. It allows me to remember less switches of other commands, and simplify syntax of complex commands (pipes chain)

I treat cat as a stream-fier: given a file it creates a stream on stdout

BTW Is it true that the origin of cat name is that in slang to cat means to vomit ? (to vomit a file to stout) ? This is what I always known, but recently I read that cat stand for conCAT

I prefer cat as vomit....

frhack··on Periodic Table Gallery
here is the my version in XML + XSLT

https://regexp.s3.amazonaws.com/elechi.xml

frhack··on How to check if two SQL tables are the same
Quickly Compare Data in Two Tables Using CHECKSUM and CHECKSUM_AGG

https://sqlundercover.com/2018/12/18/quickly-compare-data-in...

frhack··on Show HN: Yaksha Programming Language
No lambda ?
frhack··on It’s official: July was Earth’s hottest month on record
I suspect that global warming is growing at an exponential rate. It would surprise me if it weren't so. Every effect of global warming contributes to fueling it. If it is indeed exponential growth, expect the effects to double over the doubling time, probably in the order of years.
frhack··on Are dynamic languages going to replace static languages? (2003)
According to Erik Meijer TDD is not the way at all.

https://youtu.be/2u0sNRO-QKQ

frhack··on Ray Ozzie's latest venture is a cheap IoT board with flat rate connectivity
Why syncronous protocol ?
frhack··on Shorting Bitcoin
If BTC sneezes because mining is prohibited, proof of stake cryptocurrency stay health.
frhack··on Shorting Bitcoin
Coinbase is not BTC only. The crypto market cap is growing exponentially since 2015

Today BTC is only 46.3% of the total market cap,

BTC is proof of work, while the future is proof of stake.

The crypto market is growing very fast and it is changing very fast too.

https://ventures.coinbase.com/

frhack··on IoT on QuestDB
Very interesting, but can anyone explain the underlying technology? There are no free lunches. Here we have sql join on time series data. Very cool, but is it really sustainable?