# Gauge invariance 2

Gauge invariance also implies that most force particles interact with themselves: …

— Fundamental Physics: Where We Stand Today

— John Baez

2010.06.10 Thursday ACHK

# Startup

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The best way to come up with startup ideas is to ask yourself the question:

what do you wish someone would make for you?

— Paul Graham

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2010.06.10 Thursday $ACHK$