bd6c50dd861c018

http://nhiro.org.s3.amazonaws.com/a/7/a70e25adc098d023242d1d10c5ca2350.jpg https://gyazo.com/a70e25adc098d023242d1d10c5ca2350

(OCR text)

具体的な知識v.s. 抽象的な知識

陳腐化が

速い