Thi\u1ec1n nghi\u00eam kh\u1eafc. N\u00f3 l\u00e0 con \u0111\u01b0\u1eddng r\u1ea5t gian tru\u00e2n. N\u00f3 kh\u00f4ng ph\u1ea3i l\u00e0 tr\u00f2 ch\u01a1i \u0111\u1ec3 ch\u01a1i, n\u00f3 l\u00e0 ch\u01a1i v\u1edbi l\u1eeda. B\u1ea1n s\u1ebd kh\u00f4ng bao gi\u1edd c\u00f2n nh\u01b0 c\u0169 m\u1ed9t khi b\u1ea1n \u0111i v\u00e0o trong th\u1ebf gi\u1edbi c\u1ee7a Thi\u1ec1n. B\u1ea1n s\u1ebd \u0111\u01b0\u1ee3c bi\u1ebfn \u0111\u1ed5i to\u00e0n b\u1ed9, nhi\u1ec1u t\u1edbi m\u1ee9c b\u1ea1n s\u1ebd kh\u00f4ng c\u00f3 kh\u1ea3 n\u0103ng nh\u1eadn ra b\u1ea3n th\u00e2n b\u1ea1n. Ng\u01b0\u1eddi \u0111i v\u00e0o trong th\u1ebf gi\u1edbi c\u1ee7a Thi\u1ec1n v\u00e0 ng\u01b0\u1eddi \u0111i ra l\u00e0 c\u00e1c th\u1ef1c th\u1ec3 kh\u00e1c to\u00e0n b\u1ed9. Kh\u00f4ng c\u00f3 s\u1ef1 li\u00ean t\u1ee5c, b\u1ea1n tr\u1edf th\u00e0nh gi\u00e1n \u0111o\u1ea1n v\u1edbi qu\u00e1 kh\u1ee9 c\u1ee7a b\u1ea1n. M\u1ecdi s\u1ef1 li\u00ean t\u1ee5c c\u1ee7a t\u00e2m tr\u00ed; m\u1ecdi \u0111\u1ed3ng nh\u1ea5t c\u1ee7a t\u00e2m tr\u00ed; m\u1ecdi c\u00e1i t\u00ean, m\u1ecdi h\u00ecnh d\u1ea1ng, \u0111\u1ec1u l\u00e0 c\u1ee7a t\u00e2m tr\u00ed. Khi t\u00e2m tr\u00ed b\u1ecb b\u1ecf \u0111i b\u1ea1n \u0111\u1ed9t nhi\u00ean tr\u1edf th\u00e0nh gi\u00e1n \u0111o\u1ea1n v\u1edbi qu\u00e1 kh\u1ee9 — m\u00e0 kh\u00f4ng ch\u1ec9 v\u1edbi qu\u00e1 kh\u1ee9, b\u1ea1n tr\u1edf th\u00e0nh kh\u00f4ng \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i v\u1edbi th\u1eddi gian.<\/p>\n
V\u00e0 \u0111\u00f3 l\u00e0 to\u00e0n th\u1ec3 b\u00ed m\u1eadt c\u1ee7a Thi\u1ec1n: tr\u1edf n\u00ean kh\u00f4ng \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i v\u1edbi th\u1eddi gian. Th\u1ebf th\u00ec b\u1ea1n tr\u1edf n\u00ean \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i v\u1edbi v\u0129nh h\u1eb1ng. V\u00e0 v\u0129nh h\u1eb1ng l\u00e0 \u1edf \u0111\u00e2y-b\u00e2y gi\u1edd; v\u0129nh h\u1eb1ng kh\u00f4ng bi\u1ebft t\u1edbi qu\u00e1 kh\u1ee9 v\u00e0 kh\u00f4ng bi\u1ebft t\u1edbi t\u01b0\u01a1ng lai; v\u0129nh h\u1eb1ng l\u00e0 hi\u1ec7n t\u1ea1i thu\u1ea7n tu\u00fd. Th\u1eddi gian kh\u00f4ng bi\u1ebft t\u1edbi hi\u1ec7n t\u1ea1i – th\u1eddi gian l\u00e0 qu\u00e1 kh\u1ee9 v\u00e0 t\u01b0\u01a1ng lai. B\u00ecnh th\u01b0\u1eddng ch\u00fang ta ngh\u0129 r\u1eb1ng th\u1eddi gian \u0111\u01b0\u1ee3c chia th\u00e0nh ba ph\u00e2n lo\u1ea1i: qu\u00e1 kh\u1ee9, hi\u1ec7n t\u1ea1i v\u00e0 t\u01b0\u01a1ng lai. \u0110i\u1ec1u \u0111\u00f3 l\u00e0 tuy\u1ec7t \u0111\u1ed1i sai. Th\u1eddi gian \u0111\u01b0\u1ee3c chia th\u00e0nh ch\u1ec9 hai ph\u00e2n lo\u1ea1i: qu\u00e1 kh\u1ee9 v\u00e0 t\u01b0\u01a1ng lai. Hi\u1ec7n t\u1ea1i kh\u00f4ng ph\u1ea3i l\u00e0 m\u1ed9t ph\u1ea7n c\u1ee7a th\u1eddi gian ch\u00fat n\u00e0o. Quan s\u00e1t, nh\u00ecn m\u00e0 xem. Hi\u1ec7n t\u1ea1i l\u00e0 khi n\u00e0o? Kho\u1ea3nh kh\u1eafc b\u1ea1n nh\u1eadn ra r\u1eb1ng \u0111\u00e2y l\u00e0 hi\u1ec7n t\u1ea1i, n\u00f3 \u0111\u00e3 l\u00e0 qu\u00e1 kh\u1ee9 r\u1ed3i. Kho\u1ea3nh kh\u1eafc b\u1ea1n n\u00f3i, ‘V\u00e2ng, \u0111\u00e2y l\u00e0 hi\u1ec7n t\u1ea1i,’ n\u00f3 \u0111\u00e3 qua r\u1ed3i, n\u00f3 l\u00e0 qu\u00e1 kh\u1ee9. Hay n\u1ebfu b\u1ea1n n\u00f3i, ‘\u0110\u00e2y s\u1ebd l\u00e0 hi\u1ec7n t\u1ea1i,’ n\u00f3 v\u1eabn l\u00e0 t\u01b0\u01a1ng lai. B\u1ea1n kh\u00f4ng th\u1ec3 nh\u1eadn ra \u0111\u01b0\u1ee3c hi\u1ec7n t\u1ea1i, b\u1ea1n kh\u00f4ng th\u1ec3 s\u1edd m\u00f3 \u0111\u01b0\u1ee3c hi\u1ec7n t\u1ea1i, b\u1ea1n kh\u00f4ng th\u1ec3 ch\u1ec9 ra \u0111\u01b0\u1ee3c hi\u1ec7n t\u1ea1i. Trong th\u1ebf gi\u1edbi c\u1ee7a th\u1eddi gian kh\u00f4ng c\u00f3 hi\u1ec7n t\u1ea1i.<\/p>\n
Khi b\u1ea1n nh\u00ecn l\u00ean \u0111\u1ed3ng h\u1ed3 n\u00f3 \u0111\u00e3 chuy\u1ec3n \u0111i r\u1ed3i, kh\u00f4ng m\u1ed9t kho\u1ea3nh kh\u1eafc n\u00e0o n\u00f3 d\u1eebng l\u1ea1i. Khi b\u1ea1n quan s\u00e1t n\u00f3, th\u1ebf n\u1eefa n\u00f3 c\u0169ng \u0111ang chuy\u1ec3n \u0111i. \u0110\u00f3 l\u00e0 \u0111i\u1ec1u Heraclitus ng\u1ee5 \u00fd khi \u00f4ng \u1ea5y n\u00f3i, ‘\u00d4ng kh\u00f4ng th\u1ec3 b\u01b0\u1edbc hai l\u1ea7n v\u00e0o trong c\u00f9ng d\u00f2ng s\u00f4ng.’ S\u00f4ng \u0111ang ch\u1ea3y. Qu\u00e1 kh\u1ee9 c\u00f3 \u0111\u00f3, t\u01b0\u01a1ng lai c\u00f3 \u0111\u00f3, v\u00e0 t\u01b0\u01a1ng lai li\u00ean t\u1ee5c \u0111\u01b0\u1ee3c chuy\u1ec3n th\u00e0nh qu\u00e1 kh\u1ee9. Kh\u00f4ng m\u1ed9t kho\u1ea3nh kh\u1eafc n\u00e0o l\u00e0 hi\u1ec7n t\u1ea1i \u1edf \u0111\u00f3, kh\u00f4ng m\u1ed9t kho\u1ea3nh kh\u1eafc n\u00e0o \u0111\u1ed3ng h\u1ed3 d\u1eebng l\u1ea1i, kh\u00f4ng m\u1ed9t kho\u1ea3nh kh\u1eafc n\u00e0o s\u00f4ng d\u1eebng l\u1ea1i. Heraclitus l\u00e0 \u0111\u00fang. B\u1ea1n kh\u00f4ng th\u1ec3 b\u01b0\u1edbc hai l\u1ea7n v\u00e0o c\u00f9ng m\u1ed9t d\u00f2ng s\u00f4ng. M\u1ed9t trong c\u00e1c \u0111\u1ec7 t\u1eed c\u1ee7a \u00f4ng \u1ea5y \u0111\u00e3 n\u00f3i v\u1edbi \u00f4ng \u1ea5y, ‘Th\u01b0a th\u1ea7y, t\u00f4i \u0111\u00e3 th\u1eed, th\u1ea7y \u0111\u00fang. Nh\u01b0ng m\u1ed9t \u0111i\u1ec1u n\u1eefa t\u00f4i mu\u1ed1n th\u00eam v\u00e0o — th\u1ea7y kh\u00f4ng th\u1ec3 b\u01b0\u1edbc ngay c\u1ea3 m\u1ed9t l\u1ea7n v\u00e0o trong s\u00f4ng.’ \u0110i\u1ec1u \u0111\u00f3 \u0111\u00edch x\u00e1c l\u00e0 c\u00e1ch n\u00f3 v\u1eady. Khi th\u1ea7y ch\u1ea1m v\u00e0o s\u00f4ng, khi ch\u00e2n th\u1ea7y ch\u1ea1m s\u00f4ng, s\u00f4ng \u0111ang ch\u1ea3y \u0111i. Khi th\u1ea7y nh\u1ea5n ch\u00e2n v\u00e0o m\u1ed9t li trong s\u00f4ng, s\u00f4ng \u0111ang ch\u1ea3y \u0111i. Khi th\u1ea7y nh\u1ea5n ch\u00e2n v\u00e0o hai li trong s\u00f4ng, s\u00f4ng \u0111ang ch\u1ea3y \u0111i. \u0110\u1ebfn l\u00fac th\u1ea7y ch\u1ea1m \u0111\u00e1y, s\u00f4ng \u0111\u00e3 ch\u1ea3y nhi\u1ec1u t\u1edbi m\u1ee9c th\u1ea7y kh\u00f4ng th\u1ec3 n\u00f3i th\u1ea7y \u0111\u00e3 b\u01b0\u1edbc v\u00e0o cho d\u00f9 m\u1ed9t l\u1ea7n trong c\u00f9ng m\u1ed9t d\u00f2ng s\u00f4ng.<\/p>\n
Trong th\u1eddi gian kh\u00f4ng c\u00f3 hi\u1ec7n t\u1ea1i; hi\u1ec7n t\u1ea1i kh\u00f4ng ph\u1ea3i l\u00e0 m\u1ed9t ph\u1ea7n c\u1ee7a th\u1eddi gian. Hi\u1ec7n t\u1ea1i l\u00e0 m\u1ed9t ph\u1ea7n c\u1ee7a v\u0129nh h\u1eb1ng. Hi\u1ec7n t\u1ea1i c\u00f3 ngh\u0129a l\u00e0 b\u00e2y gi\u1edd v\u00e0 b\u00e2y gi\u1edd kh\u00f4ng bi\u1ebft t\u1edbi qu\u00e1 kh\u1ee9 v\u00e0 kh\u00f4ng bi\u1ebft t\u1edbi t\u01b0\u01a1ng lai.<\/p>\n
M\u1ed9t khi b\u1ea1n gi\u00e1n \u0111o\u1ea1n v\u1edbi t\u00e2m tr\u00ed, b\u1ea1n gi\u00e1n \u0111o\u1ea1n v\u1edbi th\u1eddi gian. V\u00e0 th\u1eddi gian v\u00e0 kh\u00f4ng gian l\u00e0 c\u00f9ng nhau.<\/p>\n
Trong th\u1ebf k\u1ec9 n\u00e0y Einstein \u0111\u00e3 kh\u00e1m ph\u00e1 ra r\u1eb1ng th\u1eddi gian v\u00e0 kh\u00f4ng gian kh\u00f4ng ph\u1ea3i l\u00e0 hai th\u1ee9 t\u00e1ch r\u1eddi; ch\u00fang l\u00e0 m\u1ed9t th\u1ee9, hay hai m\u1eb7t c\u1ee7a c\u00f9ng m\u1ed9t th\u1ee9. Cho n\u00ean \u00f4ng \u1ea5y g\u1ecdi to\u00e0n th\u1ec3 th\u1ee9 n\u00e0y l\u00e0 ‘kh\u00f4ng th\u1eddi gian’ \u0111\u1ec3 nh\u1ea5n m\u1ea1nh s\u1ef1 ki\u1ec7n l\u00e0 th\u1eddi gian kh\u00f4ng l\u00e0 g\u00ec ngo\u00e0i chi\u1ec1u th\u1ee9 t\u01b0 c\u1ee7a kh\u00f4ng gian. N\u1ebfu th\u1eddi gian bi\u1ebfn m\u1ea5t, kh\u00f4ng gian c\u0169ng bi\u1ebfn m\u1ea5t.<\/p>\n
Cho n\u00ean ng\u01b0\u1eddi \u0111\u00e3 \u0111i ra ngo\u00e0i t\u00e2m tr\u00ed m\u00ecnh l\u00e0 \u0111i ra ngo\u00e0i th\u1eddi gian v\u00e0 kh\u00f4ng gian. Ng\u01b0\u1eddi \u0111\u00f3 hi\u1ec7n h\u1eefu, nh\u01b0ng b\u1ea1n kh\u00f4ng th\u1ec3 n\u00f3i ng\u01b0\u1eddi \u0111\u00f3 \u1edf ch\u1ed7 n\u00e0o; ng\u01b0\u1eddi \u0111\u00f3 hi\u1ec7n h\u1eefu, nh\u01b0ng b\u1ea1n kh\u00f4ng th\u1ec3 n\u00f3i ng\u01b0\u1eddi \u0111\u00f3 \u1edf l\u00fac n\u00e0o. L\u00fac n\u00e0o v\u00e0 ch\u1ed7 n\u00e0o t\u1ea5t c\u1ea3 \u0111\u1ec1u tan bi\u1ebfn. Ng\u01b0\u1eddi \u0111\u00f3 \u0111\u01a1n gi\u1ea3n hi\u1ec7n h\u1eefu, kh\u00f4ng c\u00f3 b\u1ea5t k\u00ec \u0111\u1ecbnh ngh\u0129a n\u00e0o v\u1ec1 \u1edf \u0111\u00e2u v\u00e0 l\u00fac n\u00e0o. \u0110\u00e2y l\u00e0 \u0111i\u1ec1u Ph\u1eadt g\u1ecdi l\u00e0 ch\u1ee9ng ng\u1ed9. \u0110\u00e2y l\u00e0 t\u1ef1 do, tuy\u1ec7t \u0111\u1ed1i t\u1ef1 do. Kh\u00f4ng c\u00e1i g\u00ec gi\u1edbi h\u1ea1n b\u1ea1n.<\/p>\n
Nh\u01b0ng con \u0111\u01b0\u1eddng n\u00e0y l\u00e0 r\u1ea5t nghi\u00eam kh\u1eafc. N\u00f3 ph\u1ea3i l\u00e0 v\u1eady v\u00ec n\u00f3 l\u00e0 m\u1ed9t lo\u1ea1i t\u1ef1 t\u1eed t\u1ed1i th\u01b0\u1ee3ng. B\u1ea1n t\u1ef1 t\u1eed. B\u1ea1n l\u00e0m cho t\u00e2m tr\u00ed t\u1ef1 t\u1eed. B\u1ea1n b\u1ecf t\u00e2m tr\u00ed, b\u1ea1n b\u1ecf th\u1eddi gian, b\u1ea1n b\u1ecf kh\u00f4ng gian. Th\u1ebf gi\u1edbi m\u00e0 b\u1ea1n \u0111\u00e3 bi\u1ebft cho t\u1edbi gi\u1edd bi\u1ebfn m\u1ea5t v\u00e0 c\u00e1i g\u00ec \u0111\u00f3 m\u1edbi to\u00e0n b\u1ed9, c\u00e1i g\u00ec \u0111\u00f3 kh\u00f4ng th\u1ec3 \u0111\u1ecbnh ngh\u0129a \u0111\u01b0\u1ee3c, n\u1ea3y sinh trong t\u00e2m th\u1ee9c b\u1ea1n.<\/p>\n
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T\u1eeb “T\u00f9ng t\u00f9ng c\u1eafc t\u00f9ng”, Ch.1 Kh\u00f4ng h\u1ec1 gi\u1ea3 v\u1edd ngay c\u1ea3 v\u1ec1 c\u00e1i s\u1ecd<\/p>\n