Youtube activity of "Olga Polka" (@olgapolka168) on "PRO Hi-Tech" channel.
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UCHNB9CSShhKXPd87_idvBlw
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Olga Polka
Commenter name
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@olgapolka168
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"Эффект наблюдателя – полное объяснение без мистики."
Comments by video