[brutos]

That idea seems to be discredited: https://en.wikipedia.org/wiki/Ural%E2%80%93Altaic_languages

The remaining connections of Korean still fascinated me when I first heard about it: https://en.wikipedia.org/wiki/Altaic_languages

> Various versions included the Turkic, Mongolic, Tungusic and sometimes the Korean and Japonic languages.

I was surprised of a kind of "UEH-ll" sound that you can hear in both modern turkish (their goodbye) and Korean language (don't have an example) and wondered if they had some kind of connection. Apparently they do!

[gkya]

Turkish ü is similar to German umlauted u and the French u. Here the theory that Turkish is part of a big Altaic-Uralic family that may include also Korean, Mongolic and Japanese is taught at schools. IANAL but AFAIK the general view is that Altaic and Uralic are separate, and Korean and Japanese are not Altaic languages.

Note that Uralic-Altaic and the like have been the fruit of an Anatolian Turkish nationalism and tend to speculate for nobilising the language.