Instead of using an ignorant sarcasm, take a look at facts and formulate an argument:

http://etfdb.com/etfdb-category/technology-equities/

http://venturebeat.com/2016/01/18/there-are-now-229-unicorn-...

http://www.bloomberg.com/research/sectorandindustry/industri...

http://www.bloomberg.com/research/sectorandindustry/industri...

The fact is that LinkedIn isn't a "Unicorn" startup, which is kind of their point of the overuse of tech bubble.

Hm, would be fun to see a plot like Google's n-gram viewer of HN's use of the phrase "bubble burst" over time.

"apparently idioms exist"

What, only 50 pages of occurrences?