在古代,加密是由许多办法完成的。在中国较“流行”使用淀粉水在纸上写字,再浸泡在碘水中使字浮现出来。而外国就不同了,最经典的莫过于伯罗奔尼撒战争。公元前405年,雅典和斯巴达之间的伯罗奔尼撒战争已进入尾声。斯巴达军队逐渐占据了优势地位,准备对雅典发动最后一击。这时,原来站在斯巴达一边的波斯帝国突然改变态度,停止了对斯巴达的援助,意图是使雅典和斯巴达在持续的战争中两败俱伤,以便从中渔利。在这种情况下,斯巴达急需摸清波斯帝国的具体行动计划,以便采取新的战略方针。正在这时,斯巴达军队捕获了一名从波斯帝国回雅典送信的雅典信使。斯巴达士兵仔细搜查这名信使,可搜查了好大一阵,除了从他身上搜出一条布满杂乱无章的希腊字母的普通腰带外,别无他获。情报究竟藏在什么地方呢?斯巴达军队统帅莱桑德把注意力集中到了那条腰带上,情报一定就在那些杂乱的字母之中。他反复琢磨研究这些天书似的文字,把腰带上的字母用各种方法重新排列组合,怎么也解不出来。最后,莱桑德失去了信心,他一边摆弄着那条腰带,一边思考着弄到情报的其他途径。当他无意中把腰带呈螺旋形缠绕在手中的剑鞘上时,奇迹出现了。原来腰带上那些杂乱无章的字母,竟组成了一段文字。这便是雅典间谍送回的一份情报,它告诉雅典,波斯军队准备在斯巴达军队发起最后攻击时,突然对斯巴达军队进行袭击。斯巴达军队根据这份情报马上改变了作战计划,先以迅雷不及掩耳之势攻击毫无防备的波斯军队,并一举将它击溃,解除了后顾之忧。随后,斯巴达军队回师征伐雅典,终于取得了战争的最后胜利。

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  为什么不是爱情童话?抱歉我要用很世俗的眼光来分析男女主人公的感情,但是我一贯不相信一个人一生非另一个人不可,除非那个人的意义上升到了另一个高度。 Jamal 的理想主义在那种社会环境下意味着他始终需要一个精神寄托。小的时候是那个男明星, Jamal 为了他的签名可以跳进粪坑。而母亲死后, Jamal和哥哥一直在过着颠沛流离的日子,兄弟感情又不是纯友爱,只能说又爱又恨的。他唯一的朋友,他生命中唯一美好的事物就是 Latika 了。即使失散多年 Jamal 也忘不了 Latika ,因为寻找她是他生命的主要意义,是他活着的理由。因此,我认为这种近似强迫症的不现实的坚持其实是可能的,有着现实意义,不是童话。有人说 Freida Pinto 过于漂亮,我很同意。 Jamal 认为 Latika 是世上最美的女人,而 Pinto 也差不离了;如果 Latika 其实没有那么漂亮,就更能体现出她对于 Jamal 的精神意义。  

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Peer to peer (P2P) electronic cash is simply described as online money sent from one person to another without the need for a trusted third-party. As described in the original Bitcoin whitepaper by Satoshi Nakamoto, P2P cash makes use of digital signatures as part of the solution, but the main benefits are lost if a trusted third party is still required to prevent fraud. This makes P2P cash a trustless and safe way to transact without the need of intermediaries.
The split originated from what was described as a "civil war" in two competing bitcoin cash camps.[18][29] The first camp, supported by entrepreneur Roger Ver and Jihan Wu of Bitmain, promoted the software entitled Bitcoin ABC (short for Adjustable Blocksize Cap) which would maintain the block size at 32MB.[29] The second camp led by Craig Steven Wright and billionaire Calvin Ayre put forth a competing software version Bitcoin SV, short for "Bitcoin Satoshi's Vision," that would increase the block size limit to 128MB.[26][29]

With the largest variety of markets and the biggest value - having reached a peak of 18 billion USD - Bitcoin is here to stay. As with any new invention, there can be improvements or flaws in the initial model however the community and a team of dedicated developers are pushing to overcome any obstacle they come across. It is also the most traded cryptocurrency and one of the main entry points for all the other cryptocurrencies. The price is as unstable as always and it can go up or down by 10%-20% in a single day.

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是比特币证券市场或商品


At the time of the software upgrade (also known as a fork) anyone owning bitcoin was also in possession of the same number of Bitcoin Cash units.[19][16] The technical difference between Bitcoin Cash and Bitcoin is that Bitcoin Cash allows larger blocks in its blockchain than Bitcoin, which in theory allows it to process more transactions per second.[20] Bitcoin Cash was the first of the Bitcoin forks, in which software-development teams modified the original Bitcoin computer code and released coins with “Bitcoin" in their names, with "the goal of creating money out of thin air."[21] In relation to Bitcoin it is characterized variously as a spin-off,[5] a strand,[22] a product of a hard fork,[23] an offshoot,[24] a clone,[15] a second version[14] or an altcoin. On 1 August 2017 Bitcoin Cash began trading at about $240, while bitcoin traded at about $2,700.[16]

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With the largest variety of markets and the biggest value - having reached a peak of 18 billion USD - Bitcoin is here to stay. As with any new invention, there can be improvements or flaws in the initial model however the community and a team of dedicated developers are pushing to overcome any obstacle they come across. It is also the most traded cryptocurrency and one of the main entry points for all the other cryptocurrencies. The price is as unstable as always and it can go up or down by 10%-20% in a single day.

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  每一个细节都能反映很多事情,正如社会本身。 Truth alone triumphs ,还是 money, fashion, 或是 lies ? Jamal 回答不了。他没有受过教育,没有被灌输过所谓的 National motto 。如果根据他的亲身经历去理解,他真的不知道这些东西究竟那个是王道。有钱的黑社会老大、著名的男演员、装成善人却弄瞎小孩子的乞讨集团首领都混得不错, truth 在哪里?当审问他的警官说“我五岁的女儿都会回答这道题”的时候, Jamal 问了他两个问题,贫民窟 5 岁小孩都能回答的问题,警官却答不出。这就是贫富阶级的差别,受教育不同、吃的东西不同,去的地方也不同…… 开篇警官审问 Jamal 的镜头,让我们想起与伊拉克有关的各种虐待和拷问。警官说“外面还有许多强盗、强奸犯、诈骗犯、勒索犯等我去抓,你快招了吧,省省咱俩的时间”,可是我们自始至终只看到警察追赶在私人土地上玩耍的穷孩子,殴打在泰姬陵揽客的孤儿,以及无视被纵火的穆斯林教徒、一心在车里打牌。我们还看到白色轿车穿梭在狭窄胡同的穷人堆里的,烧成废墟的贫民窟和孟买城中拔地而起的高楼。只要用心,我们能看到的太多了。整个印度的社会风貌都展现在我们面前,一个 Latika 算什么。只看到爱情故事的人,是选择性失明而已。   

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Bitcoin is the world’s first virtual digital currency underpinned by a completely decentralized blockchain technology also known as the Distributed Ledger Technology (DLT). Bitcoin was first created in 2009 by an anonymous identity of Satoshi Nakamoto. Bitcoin allows for peer-to-peer transactions and is completely free of any third-party involvement like financial institutions or central banks. The Bitcoin’s blockchain network maintains a history of all the transactions made and facilitates instant funds transfer with minimal transaction fees required to cover the cost of network operation. The total supply of Bitcoin is fixed at 21 million coins and its smallest fractional unit is called as Satoshi. Each Satoshi is a hundred millionth of a Bitcoin which means 100,000,000 Santoshi = 1 BTC. Bitcoins are generated by a process known as ‘mining’ which involves solving of complex mathematical algorithms. The miners involved in the mining process look after the Bitcoin network security and validate each transactions taking place on the network. Bitcoin can be exchanged with other digital currencies or fiat currencies. Bitcoin is used as a means of payment by over 100,000 vendors and merchants.

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The would-be hard fork with an expanded block size limit was described by hardware manufacturer Bitmain in June 2017 as a "contingency plan" should the bitcoin community decide to fork; the first implementation of the software was proposed under the name Bitcoin ABC at a conference that month. In July 2017, the Bitcoin Cash name was proposed by mining pool ViaBTC. The change, called a fork, took effect on 1 August 2017. As a result, the bitcoin ledger called the blockchain and the cryptocurrency split in two.[16]

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主人公贾马尔就是作者心目中的神,他对美好事物的不懈追求被影片渲染得感人至深。他在任何情况下都从不放弃对心中圣洁化身的拉提卡的追求,无论是金钱的诱惑,还是生命受到威胁,都没有窒灭他的所求。在看到自己心爱的人被哥哥抛弃时,一向尊重哥哥的他怒不可遏。他参加百万富翁的节目,不是为了成为百万富翁,而是为了寻找拉提卡。他的性格是那样单纯,他的心灵是那样干净,这简直就是作者富有诗意的创造,寄托着作者对美好人性的无限渴望和对世俗对人性美的冲击的深深忧虑。银幕上这样一个简单、率直又可爱的个性赢得了许多观众的“垂青”,他时常说的一句“It's our destiny.”(这是我们的命中注定),更引来了无数粉丝的尖叫。的确,在现实生活中,一个拥有这样美好心灵的人都是很值得我们尊敬的,但在他没有成功以前,这样的人很容易被人看作为是“一根筋”。

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在这一段中,萨利姆成为了真正的萨利姆。看着电视里的贾马尔,萨利姆心中是感动,是懊悔,是骄傲,他虽然嘴上说“他是个疯子”,但实际上对能有这样一个灵魂圣洁的弟弟,他发自内心的骄傲。他让拉提卡走,他知道那意味着什么,导演特意给了打电话的贾维德一个特写,表明了萨拉姆内心的挣扎和害怕,他知道那意味着死亡。但作为一个男子汉,他从来都是说一不二的,他说“他那儿我来摆平”,同样是气势如虹,萨拉姆做事从不需要解释,他不希望弟弟担心,于是,他说:“你别无选择”,的确,拉提卡的每一次选择实际上都是萨拉姆替她做的,无论是好的,或是坏的,他这句话的潜台词,分明是在托付拉提卡,好好照顾贾马尔,他是我唯一的弟弟。“原谅我所做的一切”,既是对拉提卡说,也是对远处的弟弟贾马尔说的,那一句话里,包含的是兄长对弟弟的爱,是父亲对儿子的爱,是长辈对晚辈的爱,是对自己血脉另一部分的爱,他让拉提卡好好活着,也正是让贾马尔好好活着。当他躺在装满钞票的浴缸里时,他生平的两个愿望都得到了实现:第一,他想成为百万富翁,他此刻拥有了钞票,他温柔地触摸着它们;第二,他想要成为弟弟的保护神,他要弟弟过的好,看到他和拉提卡能够团聚,这个愿望也实现了,他的人生得到了升华,他的完美旅程结束了。

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  而 Jamal 是个不折不扣的理想主义者。他善良而执着,对 Latika 一直不肯放弃。 Salim 在火车上数钱的时候, Jamal 脑子里想的都是 Latika ,兄弟俩的人生观一目了然。演员 Dev Patel 现实中也是只有 18 岁,有人说 Jamal 看起来太单薄,跳起舞来都是长手长脚的。但是这有什么关系呢?外型虽然薄弱,意志却无比坚强。 开头被拷打时,胖警察报告审了他一夜,除了名字什么都没问出来——“ He’s a tough guy.” 他的长官说“ What the hell can a slumdog possibly know” 的时候,背后被电晕的 Jamal 吐了一口血:“ The answers.” 这个镜头,我印象非常深刻。 18 岁的 Jamal Malik 因为这种坚强而显得格外性感。如果说这部电影是个童话,那也一定是因为 Jamal 这种近似不可能的执着和坚持,而不是男女主人公的离奇爱情故事。选不出“ Truth Alone Triumphs.” 的 Jamal ,他的人生故事却是这句话的完美诠释。 如果 Salim 是那个社会的代表型人物, Jamal 就是印度人民的精神象征,这就解释了为什么 Jamal 的天真善良和理想主义是理所当然的,也解释了为什么 Jamal 赢大奖后人们都为他兴奋欢呼。  

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