{"id":7319,"date":"2021-05-16T23:34:00","date_gmt":"2021-05-16T20:34:00","guid":{"rendered":"https:\/\/alfacash.blog\/?p=7319"},"modified":"2024-02-19T21:51:46","modified_gmt":"2024-02-19T18:51:46","slug":"faq-kryptomeny-znecisteni-zmena-klimatu","status":"publish","type":"post","link":"https:\/\/alfacash.blog\/cs\/2021\/05\/16\/faq-kryptomeny-znecisteni-zmena-klimatu\/","title":{"rendered":"FAQ: Kryptom\u011bny, zne\u010di\u0161t\u011bn\u00ed a zm\u011bna klimatu"},"content":{"rendered":"

Ur\u010dit\u011b jste to u\u017e sly\u0161eli: kryptom\u011bny nejsou p\u0159\u00edli\u0161 ekologick\u00e9. Maj\u00ed \u0161patn\u00fd dopad na \u017eivotn\u00ed prost\u0159ed\u00ed, zvy\u0161uj\u00ed zm\u011bnu klimatu, jsou \u201eekologickou katastrofou\u201c [Agustin Carstens] atd. Je to v\u0161echno pravda? Kryptom\u011bny produkuj\u00ed zne\u010di\u0161t\u011bn\u00ed a p\u0159isp\u00edvaj\u00ed ke zm\u011bn\u011b klimatu?<\/p>\n\n\n\n

Ned\u00e1vno, Tesla zastavil<\/a> p\u0159ij\u00edm\u00e1n\u00ed plateb Bitcoin (BTC) za to, \u017ee to pova\u017euj\u00ed za \u201evelk\u00e9 n\u00e1klady pro \u017eivotn\u00ed prost\u0159ed\u00ed\u201c.<\/strong> Jak je to mo\u017en\u00e9? Jsou digit\u00e1ln\u00ed, \u017ee? Nepluj\u00ed p\u0159esn\u011b \u010dern\u00fd kou\u0159 na jasnou oblohu. Nyn\u00ed je \u010das vy\u0159e\u0161it v\u0161echny va\u0161e pochybnosti o tom.  <\/p>\n\n\n\n

Kryptom\u011bny = zne\u010di\u0161t\u011bn\u00ed? Pro\u010d?<\/strong><\/h2>\n\n\n\n

Za prv\u00e9, ne ka\u017ed\u00e1 kryptom\u011bna m\u016f\u017ee produkovat zne\u010di\u0161t\u011bn\u00ed. Skute\u010dn\u00fd probl\u00e9m poch\u00e1z\u00ed z Proof-of-Work (PoW) t\u011b\u017eba<\/a>. Toto je algoritmus a \u201ealgoritmem\u201c rozum\u00edme sadu krok\u016f a metod, kter\u00e9 jsou vytvo\u0159eny (s matematikou) k dosa\u017een\u00ed konkr\u00e9tn\u00edho v\u00fdsledku nebo vy\u0159e\u0161en\u00ed probl\u00e9mu. P\u0159esn\u011b to d\u011bl\u00e1 PoW: v\u00fdvoj obt\u00ed\u017en\u00e9ho matematick\u00e9ho probl\u00e9mu nebo h\u00e1danky, kterou mus\u00ed t\u011b\u017ea\u0159i vy\u0159e\u0161it, aby mohli ov\u011b\u0159ovat virtu\u00e1ln\u00ed transakce a \u201eextrahovat\u201c n\u011bjak\u00e9 mince.<\/p>\n\n\n\n

\"bitcoin-coin-hrst-pen\u011b\u017eenka\"<\/figure><\/div>\n\n\n\n

T\u011b\u017ea\u0159i sout\u011b\u017e\u00ed s ostatn\u00edmi o \u201enalezen\u00ed\u201c minc\u00ed jako prvn\u00ed a jejich celkov\u00fd v\u00fdpo\u010detn\u00ed v\u00fdkon pom\u00e1h\u00e1 zajistit s\u00ed\u0165. P\u0159esto to nezn\u00ed p\u0159\u00edli\u0161 otravn\u011b, \u017ee? Probl\u00e9m je v t\u00e9 h\u00e1dance. Nikdo to opravdu nedok\u00e1\u017ee vy\u0159e\u0161it rychlost\u00ed pot\u0159ebnou k sout\u011b\u017ei. Pouze po\u010d\u00edta\u010de a n\u011bkter\u00e1 specializovan\u00e1 za\u0159\u00edzen\u00ed (ASIC minery<\/a>) to zvl\u00e1dne. A ne sami: vy\u017eaduj\u00ed hodn\u011b elekt\u0159iny, aby to zkou\u0161eli znovu a znovu, dokud nenarazili na \u0159e\u0161en\u00ed. Proto ta \u201epr\u00e1ce\u201c v d\u016fkazu.<\/p>\n\n\n\n

Pokud jste to nev\u011bd\u011bli, hodn\u011b elekt\u0159iny se obvykle rovn\u00e1 v\u011bt\u0161\u00edmu zne\u010di\u0161t\u011bn\u00ed, <\/strong>podle toho, odkud ta energie poch\u00e1z\u00ed. Uhl\u00ed a jin\u00e1 fosiln\u00ed paliva jsou celosv\u011btov\u011b b\u011b\u017en\u00fdm zdrojem elektrick\u00e9 energie. Pokud tedy energie k t\u011b\u017eb\u011b kryptom\u011bn poch\u00e1z\u00ed z uhl\u00ed, znamenalo by to pro planetu \u0161kodliv\u011bj\u0161\u00ed emise.  <\/p>\n\n\n\n

Na druhou stranu m\u00e1me stroje ASIC. Byly speci\u00e1ln\u011b navr\u017eeny pro t\u011b\u017ebu kryptom\u011bn a nic jin\u00e9ho. Nevydr\u017e\u00ed v\u0161ak mnoho \u010dasu, proto\u017ee obt\u00ed\u017enost t\u011b\u017eby kryptom\u011bn se v\u017edy zvy\u0161uje s po\u010dtem t\u011b\u017ea\u0159\u016f, kte\u0159\u00ed se p\u0159ipojuj\u00ed k s\u00edti (z bezpe\u010dnostn\u00edch d\u016fvod\u016f). Jakmile skon\u010d\u00ed u\u017eite\u010dn\u00e9 obdob\u00ed (p\u0159ibli\u017en\u011b 1,5 roku), mohou st\u00e1t se elektronick\u00fdm odpadem<\/a> a v podstat\u011b p\u0159id\u00e1n\u00edm dal\u0161\u00edch odpadk\u016f kryptom\u011bn na hromadu zne\u010di\u0161t\u011bn\u00ed.<\/p>\n\n\n\n

K tomu samoz\u0159ejm\u011b doch\u00e1z\u00ed pouze u kryptom\u011bn PoW. Jin\u00e9 syst\u00e9my, jako nap\u0159\u00edklad Proof-of-Stake (PoS), tento probl\u00e9m s t\u011b\u017ebou nemaj\u00ed.<\/p>\n\n\n\n

Kter\u00e1 kryptom\u011bna produkuje zne\u010di\u0161t\u011bn\u00ed a kter\u00e1 ne?<\/strong><\/h2>\n\n\n\n

To je slo\u017eit\u00e1 odpov\u011b\u010f. I v p\u0159\u00edpad\u011b kryptom\u011bn PoW v\u0161e z\u00e1vis\u00ed na zdroji energie a alternativn\u00edm vyu\u017eit\u00ed pro ASIC.<\/strong> V\u011bt\u0161ina horn\u00edk\u016f si vyb\u00edr\u00e1 lokality, kde je dominantn\u00ed zdroj energie obnoviteln\u00fd, a n\u011bkte\u0159\u00ed z nich ji\u017e pou\u017e\u00edvaj\u00ed sv\u00e9 ASIC pro dal\u0161\u00ed funkce, jako je topen\u00ed<\/a> nebo p\u011bstov\u00e1n\u00ed raj\u010dat (opravdu<\/a>).<\/p>\n\n\n\n

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Kdo by si p\u0159edstavoval, \u017ee t\u011b\u017eba kryptom\u011bn a zem\u011bd\u011blstv\u00ed mohou spolupracovat? Prvn\u00ed v\u00e1rka kryptomat je p\u0159ipravena ke sklizni. P\u0159ebyte\u010dn\u00e9 teplo vyu\u017e\u00edv\u00e1me na raj\u010datov\u00fd sklen\u00edk a funguje :-) pic.twitter.com\/U7qqKTshqO<\/a><\/p>- Kamil Brejcha (@KamilBrejcha) 10. b\u0159ezna 2018<\/a><\/blockquote>