Pub Date : 2021-07-13DOI: 10.1142/9789811243479_0001
Phil Thengvall
Introduction: Today’s global economic uncertainty has a way of p aralyzing nations, corporations, small business owners, families, and individuals. Yesterday, The Washington Post said that Treasury Secretary Timothy Geithner confi rmed that Aug. 2 remained the deadline for raising the $14.3 trillion debt limit. On that date the United States will begin to default on its obligations without additional borrowing authority, setting in motion the "catastrophic economic and market consequences of a default crisis."
{"title":"Nothing Ventured, Nothing Gained","authors":"Phil Thengvall","doi":"10.1142/9789811243479_0001","DOIUrl":"https://doi.org/10.1142/9789811243479_0001","url":null,"abstract":"Introduction: Today’s global economic uncertainty has a way of p aralyzing nations, corporations, small business owners, families, and individuals. Yesterday, The Washington Post said that Treasury Secretary Timothy Geithner confi rmed that Aug. 2 remained the deadline for raising the $14.3 trillion debt limit. On that date the United States will begin to default on its obligations without additional borrowing authority, setting in motion the \"catastrophic economic and market consequences of a default crisis.\"","PeriodicalId":266661,"journal":{"name":"Randomness and Realism","volume":"424 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132132238","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-07-13DOI: 10.1142/9789811243479_0004
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Pub Date : 1995-06-01DOI: 10.1142/9789811243479_0006
G. Au
One of the greatest challenges facing theoretical physics lies in reconciling Einstein's classical theory of gravity - general relativity - with quantum field theory. Although both theories have been experimentally supported in their respective regimes, they seem mutually incompatible. This article summarises the current status of the superstring approach to the problem, the status of the Ashtekar program, and addresses the problem of time in quantum gravity. It contains interviews with Abhay Ashtekar, Chris Isham, and Edward Witten.
理论物理学面临的最大挑战之一是如何调和爱因斯坦的经典引力理论——广义相对论——与量子场论。尽管这两种理论在各自的制度下都得到了实验的支持，但它们似乎互不相容。本文总结了超弦方法解决量子引力问题的现状、Ashtekar计划的现状，并讨论了量子引力中的时间问题。它包含了对Abhay Ashtekar, Chris Isham和Edward Witten的采访。
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