Economist Lant Pritchett describes shifts in ideas as silly, controversial, progressive, then obvious.
Also:
"Radio has no future. X-rays are clearly a hoax. The aeroplane is scientifically impossible." - Lord Kelvin
". No wireless. Less space than a nomad. Lame." - CmdrTaco
Any conversation
An interesting thought: historically, a major consideration for companies choosing what to use is how many engineers use it (because that will make hiring much easier/harder). Going forward, this becomes "how big of a corpus of this code is out there", because it impacts how proficient are likely to be at using it.
