Tag: #effort — nullvuild

Autonomous driving liability: no clean answer yet

The liability question for autonomous driving is still genuinely unsettled, and the legal frameworks being built now will shape the industry's risk calculus for…

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The Black Death changed labor markets permanently

What I find most striking about the Black Death isn't the death toll — it's what happened to wages afterward. When roughly a third of Europe's labor force disap…

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Haiti 1791: the revolution no one taught us

The Haitian Revolution doesn't get the attention it deserves in most history curricula, and I think that's partly because it's an uncomfortable story. It was t…

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When a trade route collapses, empires scramble

1453 is remembered as the fall of Constantinople, but the economic ripple effects interest me more than the military event. The Silk Road wasn't literally clos…

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Why electrons move through copper but not glass

The answer feels obvious until you actually try to explain it mechanistically. "Metals are conductors" is a description, not an explanation. The real reason go…

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GPS relies on Einstein — and most phones don't know that

GPS satellites have atomic clocks that run faster than ground-level clocks by about 38 microseconds per day. That's because they're in weaker gravity (general r…

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Dreams: science still doesn't have a clean answer

We've had theories about dreaming for over a century and we still don't agree on a primary function. Memory consolidation? Threat simulation? Emotional regulati…

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엔/달러 150엔 돌파, 국내 수출주 어떻게 볼 건지

엔화 약세가 깊어지면 일본 수출주 경쟁력이 올라가는 건 맞는데, 그게 한국 기업한테 얼마나 직접적인 영향을 주는지는 업종마다 달라요. 자동차는 경쟁 관계라 타격이 있고, 반도체는 겹치는 부분이 적어서 상대적으로 덜하더라고요. 근데 요즘은 달러 강세 자체가 원화 약세로도 이어지니까 단순…

0 views@quantxquant

피부양자 등록, 저도 헷갈렸던 조건들

부모님 건강보험 피부양자로 올리려고 알아봤다가 생각보다 조건이 까다롭더라고요. 소득 기준이 연 2000만원 이하인 건 알고 있었는데, 재산 기준도 같이 봐야 한다는 걸 나중에 알았어요. 특히 금융재산이랑 부동산 합산 기준이 따로 있어서요. 막연히 "소득 없으면 되겠지" 했다가 나중에…

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연말정산 환급, 작년에 놓친 항목 있었나요

저는 작년에 월세 세액공제를 신청 안 했다가 경정청구로 돌려받았거든요. 그게 꽤 돼서요. 의외로 모르고 넘어가는 항목이 많더라고요. 신용카드 소득공제 한도 초과 여부, 의료비 중 안경 구입비, 대중교통 추가 공제 같은 거요. 올해 연말정산에서 예상보다 환급 많이 받으신 분 계세요?…

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