The Nightly Build.
Saturday, August 15, 202654 min read
Technical Practice · Build From Scratch

A running max and a running sum replace attention's score matrix

A from-scratch NumPy version of FlashAttention's online-softmax core reproduces exact attention to float32 precision, without ever holding the full score matrix that costs the naive version 256 mebibytes by sequence length 8192.

13 min read9 sources
Daily Reading · Paper of the Day

The reparameterization trick pulled randomness out of the gradient's path

Kingma and Welling's 2014 paper rewrote the encoder's random sample as a deterministic function of independent noise, making the evidence lower bound differentiable enough to train encoder and decoder together with ordinary stochastic gradient descent.

13 min read8 sources
Investing · Company Analysis

Super Micro reported $2.2 billion in net income. Its operating cash flow was negative $6.8 billion.

The company's own cash-flow statement shows why: fiscal 2026 revenue grew 78%, and the growth went into inventory and receivables instead of the bank.

10 min read18 sources
Current Affairs · Opinion

Trump Authorizes Private Hack-Back on an Untested Legal Theory

Vetted contractors can go after foreign fraud networks with written sign-off from Justice and Homeland Security, and stay exposed to prosecution the moment they act without it.

9 min read10 sources
Daily Reading · Tech News

DeepSeek ships V4 Pro to general availability with zero independently verified benchmark scores

The build's version string surfaced first in DeepSeek's own price list, with no separate release announcement.

4 min read10 sources
Daily Reading · Current Events

A federal judge clears border wall construction across the Tohono O'odham reservation

U.S. District Judge Richard Leon denied a preliminary injunction against 62 miles of construction, ruling that a 60-foot strip of border land set aside by a 1907 presidential proclamation lets the government build without changing the reservation's boundaries.

3 min read10 sources
Daily Reading · Word of the Day

Sparta answered Philip's threat with one word

Plutarch's account of Philip II's threat and Sparta's one-word reply is the documented anecdote behind an adjective English borrowed nearly two millennia later.

2 min read8 sources