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Tesla turbine-inspired structure generates electricity using compressed air

https://techxplore.com/news/2026-01-tesla-turbine-generates-electricity-compressed.html
1•PaulHoule•30s ago•0 comments

State Department deleting 17 years of tweets (2009-2025); preservation needed

https://www.npr.org/2026/02/07/nx-s1-5704785/state-department-trump-posts-x
1•sleazylice•33s ago•1 comments

Learning to code, or building side projects with AI help, this one's for you

https://codeslick.dev/learn
1•vitorlourenco•1m ago•0 comments

Effulgence RPG Engine [video]

https://www.youtube.com/watch?v=xFQOUe9S7dU
1•msuniverse2026•2m ago•0 comments

Five disciplines discovered the same math independently – none of them knew

https://freethemath.org
1•energyscholar•3m ago•1 comments

We Scanned an AI Assistant for Security Issues: 12,465 Vulnerabilities

https://codeslick.dev/blog/openclaw-security-audit
1•vitorlourenco•4m ago•0 comments

Amazon no longer defend cloud customers against video patent infringement claims

https://ipfray.com/amazon-no-longer-defends-cloud-customers-against-video-patent-infringement-cla...
1•ffworld•4m ago•0 comments

Show HN: Medinilla – an OCPP compliant .NET back end (partially done)

https://github.com/eliodecolli/Medinilla
2•rhcm•7m ago•0 comments

How Does AI Distribute the Pie? Large Language Models and the Ultimatum Game

https://papers.ssrn.com/sol3/papers.cfm?abstract_id=6157066
1•dkga•7m ago•1 comments

Resistance Infrastructure

https://www.profgalloway.com/resistance-infrastructure/
2•samizdis•12m ago•0 comments

Fire-juggling unicyclist caught performing on crossing

https://news.sky.com/story/fire-juggling-unicyclist-caught-performing-on-crossing-13504459
1•austinallegro•12m ago•0 comments

Restoring a lost 1981 Unix roguelike (protoHack) and preserving Hack 1.0.3

https://github.com/Critlist/protoHack
2•Critlist•14m ago•0 comments

GPS and Time Dilation – Special and General Relativity

https://philosophersview.com/gps-and-time-dilation/
1•mistyvales•17m ago•0 comments

Show HN: Witnessd – Prove human authorship via hardware-bound jitter seals

https://github.com/writerslogic/witnessd
1•davidcondrey•17m ago•1 comments

Show HN: I built a clawdbot that texts like your crush

https://14.israelfirew.co
2•IsruAlpha•19m ago•2 comments

Scientists reverse Alzheimer's in mice and restore memory (2025)

https://www.sciencedaily.com/releases/2025/12/251224032354.htm
1•walterbell•22m ago•0 comments

Compiling Prolog to Forth [pdf]

https://vfxforth.com/flag/jfar/vol4/no4/article4.pdf
1•todsacerdoti•24m ago•0 comments

Show HN: Cymatica – an experimental, meditative audiovisual app

https://apps.apple.com/us/app/cymatica-sounds-visualizer/id6748863721
1•_august•25m ago•0 comments

GitBlack: Tracing America's Foundation

https://gitblack.vercel.app/
3•martialg•25m ago•0 comments

Horizon-LM: A RAM-Centric Architecture for LLM Training

https://arxiv.org/abs/2602.04816
1•chrsw•26m ago•0 comments

We just ordered shawarma and fries from Cursor [video]

https://www.youtube.com/shorts/WALQOiugbWc
1•jeffreyjin•27m ago•1 comments

Correctio

https://rhetoric.byu.edu/Figures/C/correctio.htm
1•grantpitt•27m ago•0 comments

Trying to make an Automated Ecologist: A first pass through the Biotime dataset

https://chillphysicsenjoyer.substack.com/p/trying-to-make-an-automated-ecologist
1•crescit_eundo•31m ago•0 comments

Watch Ukraine's Minigun-Firing, Drone-Hunting Turboprop in Action

https://www.twz.com/air/watch-ukraines-minigun-firing-drone-hunting-turboprop-in-action
1•breve•32m ago•0 comments

Free Trial: AI Interviewer

https://ai-interviewer.nuvoice.ai/
1•sijain2•32m ago•0 comments

FDA intends to take action against non-FDA-approved GLP-1 drugs

https://www.fda.gov/news-events/press-announcements/fda-intends-take-action-against-non-fda-appro...
23•randycupertino•33m ago•14 comments

Supernote e-ink devices for writing like paper

https://supernote.eu/choose-your-product/
3•janandonly•35m ago•0 comments

We are QA Engineers now

https://serce.me/posts/2026-02-05-we-are-qa-engineers-now
1•SerCe•36m ago•0 comments

Show HN: Measuring how AI agent teams improve issue resolution on SWE-Verified

https://arxiv.org/abs/2602.01465
2•NBenkovich•36m ago•0 comments

Adversarial Reasoning: Multiagent World Models for Closing the Simulation Gap

https://www.latent.space/p/adversarial-reasoning
1•swyx•36m ago•0 comments
Open in hackernews

What Selling on Facebook Marketplace Taught Me About Bad Credit and False Demand

2•mvelez234•1mo ago
A few years ago I thought Facebook Marketplace was a goldmine.

The messages never stopped. “Is this still available?” “Can I pick it up today?” “Very interested.”

On paper, demand looked insane.

In reality, most of it was fake.

I was selling higher ticket items and services to everyday people. Many of them had bad credit, unstable income, or financial stress. Facebook Marketplace put me directly in front of that audience, but it did not filter for ability to buy.

I confused attention with intent.

I spent hours responding, explaining, following up, and holding items. Deals would feel close, then fall apart at the last moment. Financing applications would fail. Cash buyers would disappear. People would ghost after long conversations.

At first I blamed the platform. Then I blamed the buyers.

Eventually I realized the problem was me.

I had built a system optimized for volume instead of qualification. Facebook Marketplace is incredible at creating conversations, but terrible at signaling seriousness. Bad credit was not the real issue. Unclear expectations were.

Many people reached out because it was easy, free, and low commitment. Not because they were ready or able to buy.

The failure taught me something important. You cannot scale sales on hope.

I had to change everything.

I tightened qualification early. I stopped treating every message as a lead. I asked uncomfortable questions sooner. I stopped chasing people who wanted possibilities instead of decisions.

That reduced my message count but increased my close rate.

The biggest lesson was this. Bad credit customers are not bad customers. But unqualified demand will burn you out faster than no demand at all.

Facebook Marketplace still works, but only if you respect what it is. It is a conversation engine, not a closing engine.

Once I stopped expecting it to be something it was not, my results improved and my stress dropped.

That failure probably saved me years of wasted effort.

Comments

mvelez234•1mo ago
What failures have you had?
tantalor•1mo ago
> I stopped treating every message as a lead.

But, isn't that exactly what they are?

FB Marketplace is a lead generation service.

You should be treating every message as a lead.

It's up to the sales person (you) to differentiate good and bad leads.

mvelez234•1mo ago
So I get tons of "is it available" messages. Many of which turn to leads. My issue is bad credit customers with no money to put down.