B\u1ea1n \u0111\u1ecdc m\u1ed9t ch\u01b0\u01a1ng, v\u00e0 m\u1ecdi th\u1ee9 c\u00f3 v\u1ebb s\u00e1ng t\u1ecf. C\u00e1c \u00fd t\u01b0\u1edfng n\u1ed1i ti\u1ebfp nhau, m\u1ed7i c\u00e2u c\u00f3 v\u1ebb r\u00f5 r\u00e0ng, b\u1ea1n c\u00f3 c\u1ea3m gi\u00e1c v\u1eefng ch\u1eafc r\u1eb1ng m\u00ecnh \u0111\u00e3 hi\u1ec3u. R\u1ed3i ai \u0111\u00f3 y\u00eau c\u1ea7u b\u1ea1n gi\u1ea3i th\u00edch nh\u1eefng g\u00ec v\u1eeba \u0111\u1ecdc. V\u00e0 th\u1ebf l\u00e0 b\u1ea1n l\u00fang t\u00fang. B\u1ea1n v\u00f2ng vo quanh ch\u1ee7 \u0111\u1ec1 b\u1eb1ng nh\u1eefng t\u1eeb m\u01a1 h\u1ed3, l\u1eb7p l\u1ea1i g\u1ea7n nh\u01b0 t\u1eebng ch\u1eef nh\u1eefng g\u00ec \u0111\u00e3 \u0111\u1ecdc m\u00e0 ch\u1eb3ng bao gi\u1edd th\u1eadt s\u1ef1 di\u1ec5n \u0111\u1ea1t l\u1ea1i. Kho\u1ea3ng c\u00e1ch gi\u1eefa \u00abt\u00f4i ngh\u0129 m\u00ecnh hi\u1ec3u\u00bb v\u00e0 \u00abt\u00f4i c\u00f3 th\u1ec3 gi\u1ea3i th\u00edch\u00bb kh\u00f4ng ph\u1ea3i l\u00e0 ng\u1eabu nhi\u00ean. \u0110\u00f3 ch\u00ednh x\u00e1c l\u00e0 \u0111i\u1ec1u k\u1ef9 thu\u1eadt Feynman khai th\u00e1c.<\/p>\n
Ph\u01b0\u01a1ng ph\u00e1p n\u00e0y mang t\u00ean nh\u00e0 v\u1eadt l\u00fd Richard Feynman, ng\u01b0\u1eddi t\u1eebng \u0111o\u1ea1t gi\u1ea3i Nobel n\u1ed5i ti\u1ebfng v\u1edbi kh\u1ea3 n\u0103ng l\u00e0m s\u00e1ng t\u1ecf nh\u1eefng ch\u1ee7 \u0111\u1ec1 ph\u1ee9c t\u1ea1p \u0111\u00e1ng g\u1eddm. Nguy\u00ean t\u1eafc c\u1ee7a \u00f4ng g\u00f3i g\u1ecdn trong m\u1ed9t c\u00e2u: n\u1ebfu b\u1ea1n kh\u00f4ng th\u1ec3 gi\u1ea3i th\u00edch \u0111i\u1ec1u g\u00ec \u0111\u00f3 m\u1ed9t c\u00e1ch \u0111\u01a1n gi\u1ea3n, \u0111\u00f3 l\u00e0 v\u00ec b\u1ea1n ch\u01b0a th\u1eadt s\u1ef1 hi\u1ec3u n\u00f3.<\/p>\n
C\u1ee5 th\u1ec3, ph\u01b0\u01a1ng ph\u00e1p bao g\u1ed3m vi\u1ec7c ch\u1ecdn m\u1ed9t kh\u00e1i ni\u1ec7m, r\u1ed3i gi\u1ea3i th\u00edch n\u00f3 nh\u01b0 th\u1ec3 b\u1ea1n \u0111ang n\u00f3i v\u1edbi m\u1ed9t \u0111\u1ee9a tr\u1ebb, b\u1eb1ng nh\u1eefng t\u1eeb \u0111\u01a1n gi\u1ea3n, kh\u00f4ng thu\u1eadt ng\u1eef chuy\u00ean m\u00f4n, kh\u00f4ng gi\u1ea3 \u0111\u1ecbnh ki\u1ebfn th\u1ee9c n\u1ec1n. \u00dd t\u01b0\u1edfng n\u1ec1n t\u1ea3ng l\u00e0 s\u1ef1 \u0111\u01a1n gi\u1ea3n<\/strong> kh\u00f4ng ph\u1ea3i m\u1ed9t l\u1ed1i t\u1eaft l\u01b0\u1eddi bi\u1ebfng. \u0110\u00f3 l\u00e0 m\u1ed9t c\u00f4ng c\u1ee5 ph\u01a1i b\u00e0y kh\u00f4ng khoan nh\u01b0\u1ee3ng s\u1ef1 hi\u1ec3u bi\u1ebft th\u1eadt s\u1ef1, \u0111\u00e1ng tin c\u1eady h\u01a1n nhi\u1ec1u so v\u1edbi c\u1ea3m gi\u00e1c quen thu\u1ed9c m\u00e0 ta c\u00f3 khi \u0111\u1ecdc l\u1ea1i ghi ch\u00fa c\u1ee7a m\u00ecnh.<\/p>\n C\u01a1 ch\u1ebf g\u1ea7n nh\u01b0 m\u00e1y m\u00f3c m\u1ed9t khi b\u1ea1n \u0111\u00e3 bi\u1ebft n\u00f3. Thu\u1eadt ng\u1eef chuy\u00ean m\u00f4n v\u00e0 t\u1eeb v\u1ef1ng k\u1ef9 thu\u1eadt th\u01b0\u1eddng \u0111\u01b0\u1ee3c d\u00f9ng, m\u00e0 ta kh\u00f4ng nh\u1eadn ra, \u0111\u1ec3 che gi\u1ea5u \u0111i\u1ec1u m\u00ecnh ch\u01b0a th\u1eadt s\u1ef1 hi\u1ec3u. M\u1ed9t t\u1eeb ng\u1eef h\u00e0n l\u00e2m c\u00f3 th\u1ec3 t\u1ea1o \u1ea3o gi\u00e1c l\u00e0m ch\u1ee7 m\u1ed9t ch\u1ee7 \u0111\u1ec1, trong khi th\u1ef1c ra n\u00f3 ch\u1ec9 thay th\u1ebf cho m\u1ed9t l\u1eddi gi\u1ea3i th\u00edch m\u00e0 ta kh\u00f4ng th\u1ec3 n\u00e0o di\u1ec5n \u0111\u1ea1t \u0111\u01b0\u1ee3c.<\/p>\n Ngay khi ph\u1ea3i di\u1ec5n \u0111\u1ea1t l\u1ea1i b\u1eb1ng nh\u1eefng t\u1eeb \u0111\u01a1n gi\u1ea3n, m\u1ed7i ch\u1ed7 m\u00e0 ta v\u1ea5p v\u00e1p, do d\u1ef1, hay v\u00f4 t\u00ecnh d\u00f9ng m\u1ed9t thu\u1eadt ng\u1eef ph\u1ee9c t\u1ea1p \u0111\u1ec3 tr\u00e1nh ph\u1ea3i gi\u1ea3i th\u00edch, tr\u1edf th\u00e0nh m\u1ed9t t\u00edn hi\u1ec7u r\u00f5 r\u00e0ng v\u00e0 t\u1ee9c th\u00ec. Nh\u1eefng kho\u1ea3ng tr\u1ed1ng hi\u1ec3u bi\u1ebft<\/strong> n\u00e0y kh\u00f4ng l\u1ed9 ra khi \u0111\u1ecdc, ch\u00fang ch\u1ec9 l\u1ed9 ra khi ta c\u1ed1 g\u1eafng gi\u1ea3i th\u00edch. Ch\u00ednh \u0111i\u1ec1u n\u00e0y khi\u1ebfn ph\u01b0\u01a1ng ph\u00e1p tr\u1edf n\u00ean hi\u1ec7u qu\u1ea3 \u0111\u1ebfn v\u1eady trong vi\u1ec7c ph\u00e1t hi\u1ec7n ngay l\u1eadp t\u1ee9c \u0111i\u1ec1u m\u00ecnh ch\u01b0a n\u1eafm v\u1eefng<\/a><\/strong>, t\u1eeb r\u1ea5t l\u00e2u tr\u01b0\u1edbc m\u1ed9t k\u1ef3 thi hay m\u1ed9t bu\u1ed5i \u0111\u00e1nh gi\u00e1.<\/p>\n \u0110\u00e2y kh\u00f4ng ch\u1ec9 l\u00e0 m\u1ed9t m\u1eb9o th\u1ef1c t\u1ebf, m\u00e0 l\u00e0 m\u1ed9t c\u01a1 ch\u1ebf nh\u1eadn th\u1ee9c \u0111\u01b0\u1ee3c ghi nh\u1eadn v\u1eefng ch\u1eafc. Gi\u1ea3i th\u00edch m\u1ed9t kh\u00e1i ni\u1ec7m, d\u00f9 ch\u1ec9 cho ch\u00ednh m\u00ecnh tr\u00ean m\u1ed9t t\u1edd gi\u1ea5y, huy \u0111\u1ed9ng m\u1ed9t n\u1ed7 l\u1ef1c truy h\u1ed3i ch\u1ee7 \u0111\u1ed9ng<\/strong> th\u1eadt s\u1ef1, g\u1ea7n v\u1edbi \u0111i\u1ec1u khi\u1ebfn vi\u1ec7c \u00f4n t\u1eadp ng\u1eaft qu\u00e3ng v\u00e0 h\u1ed3i t\u01b0\u1edfng ch\u1ee7 \u0111\u1ed9ng hi\u1ec7u qu\u1ea3 \u0111\u1ebfn th\u1ebf \u1edf nh\u1eefng n\u01a1i kh\u00e1c. Ta kh\u00f4ng \u0111\u1ecdc l\u1ea1i m\u1ed9t c\u00e1ch th\u1ee5 \u0111\u1ed9ng, ta c\u1ed1 g\u1eafng t\u00e1i d\u1ef1ng, v\u00e0 ch\u00ednh n\u1ed7 l\u1ef1c t\u00e1i d\u1ef1ng \u1ea5y kh\u1eafc th\u00f4ng tin s\u00e2u h\u01a1n.<\/p>\n \u0110\u00e1ng ng\u1ea1c nhi\u00ean h\u01a1n n\u1eefa, c\u00e1c nghi\u00ean c\u1ee9u cho th\u1ea5y ch\u1ec9 ri\u00eang vi\u1ec7c chu\u1ea9n b\u1ecb \u0111\u1ec3 d\u1ea1y m\u1ed9t kh\u00e1i ni\u1ec7m, ngay c\u1ea3 khi ch\u1eb3ng bao gi\u1edd th\u1ef1c s\u1ef1 truy\u1ec1n \u0111\u1ea1t n\u00f3 cho ai, c\u0169ng thay \u0111\u1ed5i c\u00e1ch b\u1ed9 n\u00e3o t\u1ed5 ch\u1ee9c v\u00e0 ghi nh\u1edb n\u00f3. Ch\u1ec9 c\u1ea7n c\u00f3 \u00fd \u0111\u1ecbnh gi\u1ea3i th\u00edch c\u0169ng \u0111\u1ee7 \u0111\u1ec3 thay \u0111\u1ed5i s\u00e2u s\u1eafc ch\u1ea5t l\u01b0\u1ee3ng vi\u1ec7c h\u1ecdc, t\u1eeb r\u1ea5t l\u00e2u tr\u01b0\u1edbc khi l\u1eddi gi\u1ea3i th\u00edch th\u1eadt s\u1ef1 di\u1ec5n ra.<\/p>\n \u1ede \u0111\u00e2y \u0111\u00e1ng \u0111\u1ec3 l\u00e0m r\u00f5 m\u1ed9t s\u1ef1 nh\u1ea7m l\u1eabn th\u01b0\u1eddng g\u1eb7p. \u0110\u01a1n gi\u1ea3n h\u00f3a m\u1ed9t l\u1eddi gi\u1ea3i th\u00edch ch\u1eb3ng li\u00ean quan g\u00ec \u0111\u1ebfn vi\u1ec7c l\u00e0m nh\u1ea1t ch\u1ee7 \u0111\u1ec1 hay khi\u1ebfn n\u00f3 tr\u1edf n\u00ean h\u1eddi h\u1ee3t. T\u00ecm m\u1ed9t ph\u00e9p lo\u1ea1i suy<\/strong> ch\u00ednh x\u00e1c, di\u1ec5n \u0111\u1ea1t l\u1ea1i m\u1ed9t kh\u00e1i ni\u1ec7m ph\u1ee9c t\u1ea1p b\u1eb1ng l\u1eddi c\u1ee7a ch\u00ednh m\u00ecnh, th\u01b0\u1eddng \u0111\u00f2i h\u1ecfi m\u1ed9t s\u1ef1 hi\u1ec3u bi\u1ebft tinh t\u1ebf h\u01a1n nhi\u1ec1u so v\u1edbi vi\u1ec7c ch\u1ec9 l\u1eb7p l\u1ea1i t\u1eeb v\u1ef1ng h\u00e0n l\u00e2m ban \u0111\u1ea7u.<\/p>\nNh\u1eefng kho\u1ea3ng tr\u1ed1ng \u1ea9n \u1edf \u0111\u00e2u<\/h2>\n
V\u00ec sao gi\u1ea3i th\u00edch r\u00e8n luy\u1ec7n tr\u00ed nh\u1edb<\/h2>\n
\u0110\u01a1n gi\u1ea3n h\u00f3a kh\u00f4ng ph\u1ea3i l\u00e0m ngh\u00e8o \u0111i<\/h2>\n