Daniela Perlein

I feel like we’re all playing “boar on the floor”

living in a walkable neighborhood in LA is actually the best

Solid Curtain '26 was a counter-UUV exercise that brought together multiple mission stakeholders and demonstrating teams to detect asymmetric underwater threats in semi-contested port environments. The Andrenam team brought 12 buoys fully ready for the exercise. We deployed six across two locations and successfully detected several unmanned underwater vehicles in real time. Mission success. More to come.

@occamsriver @paige_eden Who is Harvey, please don’t gate keep

@paige_eden Can I take a wild guess, are you talking about Harvey

Need to go back to the bodyworker who grabbed my abdomen and lifted up all my intestines and told me to tuck my pelvis to release the adhesion between my ascending colon and retroperitoneal fascia caused by pulling my psoas while cheerleading when I was 16 but he costs $560/2hr.

Solid-state batteries are changing naval warfare. And the threats they enable are far harder to detect. A post recently went viral claiming Iran's "Azhdar" UUV patrols at 18–25 knots with 4-day endurance and 600+ km range. This appears to be false, but the post went viral because the narrative is true. UUVs are a growing threat and maritime, as demonstrated by this crisis, is more important than ever. And the stakes are high. Iran has long held the Strait of Hormuz as a pressure point; roughly 20% of global oil supply flows through a 21-mile-wide chokepoint. UUVs capable of covertly laying mines in those waters would further threaten naval assets and escalate the conflict. UUVs are already being deployed by multiple nations. Today's lithium-powered vehicles cover hundreds of kilometers and patrol for days. Solid-state batteries at 400 Wh/kg, and climbing, mean that gets dramatically better, cheaper, and more scalable this decade. Sensing underwater is categorically harder than any other domain. cUAS has radars, cameras, RF, microwave. The electromagnetic spectrum works for you in air. Water kills RF. Acoustics are the primary detection modality, and littoral environments add clutter and complexity that open-ocean legacy systems were never built for. Those legacy systems were designed to find large submarines in deep water. Not swarms of small autonomous vehicles near ports, chokepoints, and critical infrastructure. As UUVs get cheaper, faster, and more autonomous - sensing is the defining gap. cUUV is going to be a massive market. Interdiction starts with detection. And detection underwater is still largely unsolved.

@_hamilton_matt @latimes No Twitter account?

Personal news: I left @latimes in December after 11 years + joined L.A. Material — a new, soon-to-launch local news outlet. We have a small but mighty team and our site is up! No stories yet but I’m excited to show soon what we’ve been working on. lamaterial.com

@zillowgonewild It is quite hideous and undifferentiated for the housing stock in the area tbh

$2.3 feels like a steal here. Any LA agents want to weigh in?

LFG, congrats @nunzi46 on Also Cap's $50M second fund! Mike moves fast and isn't scared of the truly hard/ambitious/messy stuff. Proud to play a small part!

@OpenAI what does it take to get a human to help me cancel my paid subscription? there is literally no way to do so in my account (both web & iOS) and your AI support keeps going in circles.

Ultimately I have to be brave

@Romy_Holland My last thing — wow, this is the most I’ve tweeted in years — is that quality of IVF care is unequally distributed, meaning that I think a good chunk of reproductive endocrinologists in the space are truly bad

So my net is that the cliff is not 34 and it’s not 40, but rather ~45 for most women. Anyone who thinks they may wanna have kids (now or later) would benefit from running tests and learning more about their specific body/situation, especially men who seem to not be nearly as proactive as women.

i have two friends who recently hit 40 and suddenly decided they wanted kids after being on the fence for years. they’re both dating, but of course the guys who want kids are only considering women in their 30s. it’s too late for them to realistically freeze eggs. i’m so sad for them. talked to a friend who’s 33 the other day who said she probably wants kids but is feeling really good about having lots of personal time and doesn’t want to date or think about kids rn. she said she has a lot of personal growth she wants to do first. i tried to tell her that having kids is a great way to grow but i could tell she was bothered by me saying this. nobody could have anticipated that when people started telling girls to delay marriage and motherhood, many of them would take this to mean they could wait til 38 not 28. it’s somehow offensive to try to correct this.

@Romy_Holland Same goes for live birth rate btw. Getting enough euploid embryos as you age may take longer (and more $) but the real cliff is well past 40 (which has become the new “34”)

@Romy_Holland Once euploid, implantation rates are the same regardless of maternal age (of eggs and/or uterus) according to peer reviewed literature. Not sure the wide generalizations are helpful to the discourse is all.

@Romy_Holland You need 4 euploids banked for a 99.9% chance of a single live birth so get going :)

i’m trying to decide if it’s worth freezing embryos as a backup plan. i have time to have 4 kids, and we currently want 3-4. some people report that once their kids are a little older they start wishing they’d had 1-2 more, and i’d like to have the option to have more in case this happens. nothing sounds sadder than aging out of fertility before having the family one desires. hard to know the likelihood tho, and it’s a fairly costly insurance policy.

Today @CatoInstitute published our report providing the first look at the fiscal effects of the wave of legal & illegal immigration over the last 3 decades. It shows immigrants created surpluses every year, by a combined $14.5 trillion, even as deficits grew

@traestephens 👏

The only future prop I care about is the one that will abolish the prop system. The current system maximizes dysfunction. It's gotta go.

@cyantist 🫶

I’m really sad about what’s happening in Minnesota. And honestly, I’m confused. I keep seeing people call themselves “2A absolutists” and then suddenly start adding conditions when it doesn’t fit their narrative. Same with the idea that you “don’t show up to a protest with a gun”… but if it’s legal, then you can. You don’t get to pick and choose when rights apply. I’m not a lawyer and I haven’t had time to deep dive Minnesota’s laws. I’m still trying to keep up with Iran and California. But the inconsistency is wild. I watched the video. I’m not a detective or a judge, but shooting someone in the back while they’re falling face down just feels deeply wrong. Even in tense situations, there should be room for something other than lethal force. And calling a protester a “terrorist” is dangerous. Protesting isn’t terrorism. If we start throwing that word around, it loses all meaning. We need some real 60s era humanity right now.

@albertwenger I remember reading 1984 in middle school and thinking it was so over-the-top satirical, it was not effective… little did I know how realistic it was!

The Party told you to reject the evidence of your eyes and ears. It was their final, most essential command. - George Orwell, 1984