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Horffupolde

341 karma · joined August 12, 2023

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Horffupolde··on Nasopharyngeal Lymphatics Found to Be Crucial for Cerebrospinal Fluid Outflow
At this point you have to assume that nothing in our body is a coincidence. Also there’s no free lunch.
Horffupolde··on Lubricate Your Keyholes
In a home setting not much but it’s electrically conducting so one must be careful if that’d be an issue.
Horffupolde··on X blocks Taylor Swift searches after fake AI videos go viral
You are advised to chill.
Horffupolde··on An introduction to temporal logic and how it can be used to analyze concurrency
>English: "It is necessary and sufficient for the ground to be wet that it is raining."

That’s not true.

Horffupolde··on Building a Faraday cage with data passthrough for ESP32 reverse engineering
In theory it doesn’t need to be grounded. In practice it can be done.
Horffupolde··on Dynamic programming is not black magic
1. *Fibonacci Sequence*: The classic example where the naive recursive solution has exponential complexity. By storing previously computed values (memoization), the complexity can be reduced to linear.

2. *Coin Change Problem*: Given different denominations of coins and a total amount, finding the number of ways to make the change. The naive approach is exponential, but dynamic programming reduces it to polynomial complexity.

3. *Knapsack Problem*: Particularly the 0/1 Knapsack problem, where items with given weights and values must be placed in a knapsack of a fixed capacity to maximize total value. The naive exponential solution can be optimized using dynamic programming.

4. *Matrix Chain Multiplication*: Determining the most efficient way to multiply a chain of matrices. The problem can be solved in exponential time using a naive approach but becomes much more efficient with dynamic programming.

5. *Longest Common Subsequence*: Finding the longest subsequence common to two sequences. A classic dynamic programming problem that can be solved in polynomial time.

6. *Longest Increasing Subsequence*: Finding the length of the longest subsequence of a given sequence such that all elements of the subsequence are sorted in increasing order.

7. *Shortest Path Problems*: Like the Floyd-Warshall algorithm for finding the shortest paths in a weighted graph with positive or negative edge weights.

8. *Edit Distance (Levenshtein Distance)*: Finding the minimum number of edits (insertions, deletions, substitutions) needed to change one word into another.

Horffupolde··on When am I "allowed" to quit and not be labeled a quitter?
Rabbi Tarfon used to say: It is not your duty to finish the work, but neither are you at liberty to neglect it.
Horffupolde··on Python3 is removing crypt.crypt and not replacing it with anything
What alternatives are there to Python for general, versatile backend scripting?
Horffupolde··on Ask HN: How many of you are consciously downsizing your devices/going retro?
Dumbphone + automatic watch.
Horffupolde··on I made an app that runs Mistral 7B 0.2 LLM locally on iPhone Pros
How do you define stability in that context?
Horffupolde··on Dimensional Analysis and Black Holes (2019) [pdf]
Riemannian calculus.
Horffupolde··on Dimensional Analysis and Black Holes (2019) [pdf]
That’s a good question. Addition and subtraction does not make sense because you can’t add non-homogeneous dimensions. And if they were, there’d be a simpler expression. As for a function more complex than multiplication, you can consider the general formula such as an exponential decay and transform it using logarithms into a multiplicative form.
Horffupolde··on Email addresses are not good 'permanent' identifiers for accounts
You can open a trust to manage your domain and email service in perpetuity.
Horffupolde··on Email addresses are not good 'permanent' identifiers for accounts
You are missing the best solution which is your own domain and hosted email like Gmail. If you get locked out like you said, “just” change providers and you lose at most a couple of hours of emails.
Horffupolde··on PostgreSQL internals: Things to know about update statements
Grownups don’t use UPDATE.
Horffupolde··on Ask HN: What are you grateful for?
Being able to serve God.
Horffupolde··on A chemical signal in human female tears lowers aggression in males
Male aggression brings retaliation by her relatives and society in general. Extreme aggression is sub-optimal. We are social beings.
Horffupolde··on A chemical signal in human female tears lowers aggression in males
Completely reasonable when understood from an evolutionary point of view.
Horffupolde··on PostgreSQL 16 Bi-Directional Logical Replication
You use shard-compatible ids like snowflake.
Horffupolde··on A Matter of Millimeters: The story of Qantas flight 32
If 200 people died after a db instance crashed, software would be equal in that regard.
Horffupolde··on Why a spritz of water before grinding coffee yields better results
A then B, ~A then ~B?
Horffupolde··on A genetically modified bacterium that outcompetes bacteria causing tooth decay
With good hygiene and dental checkups twice a year, you can reasonably expect to avoid cavities altogether.
Horffupolde··on 99 Years of Charlie Munger Wisdom in 44 Minutes [video]
Not every opinion is a moral one.
Horffupolde··on Making it clear when we're on a call with you to protect you from fraud
The problem is not with the call but with who is calling you. If you can authenticate the caller, all’s fine.
Horffupolde··on The Bond villain compliance strategy
2) you can issue some kind of physical money then periodically settle crypto. It’s not all or nothing.
Horffupolde··on Berlin's indoor pools
For public pools chlorine is the only effective solution.
Horffupolde··on U.S. reenters the nuclear fuel game
Reënters
Horffupolde··on The diamond world takes radical steps to stop a pricing plunge
I agree. For reference, by irrational I mean that it goes against a utilitarian calculation as proposed by the linked article. I don’t mean that it’s “dumb” or lacking any reasoning.
Horffupolde··on The diamond world takes radical steps to stop a pricing plunge
The diamond ring has no utility, so there’s no calculation to make. It’s an irrational proof of commitment.
Horffupolde··on The diamond world takes radical steps to stop a pricing plunge
No, it’s happy life, happy wife. Think about it.
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