Because, of course, every technique that you've seen here is something that television and film producers have been able to do for the last 50 years.
왜냐하면, 물론, 여러분이 여기서 보신 그 모든 기술들은 텔레비젼이나 영화제작자들이 지난 50년간 능숙히 해온 것입니다.