tag:blogger.com,1999:blog-22973357.post8311771495327591297..comments2023-09-27T07:44:19.769-04:00Comments on Sabine Hossenfelder: Backreaction: The Other SideSabine Hossenfelderhttp://www.blogger.com/profile/06151209308084588985noreply@blogger.comBlogger23125tag:blogger.com,1999:blog-22973357.post-72490526406766728322008-05-21T18:09:00.000-04:002008-05-21T18:09:00.000-04:00Bee, two things. One, who cares if someone leaves?...Bee, two things. One, who cares if someone leaves? No expectations. Two, at the beginning, tell...ahem, I mean ASK everyone to come forward. People often need direction.bellamyhttps://www.blogger.com/profile/12243108422389386105noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-87430983076561550612008-05-13T06:58:00.000-04:002008-05-13T06:58:00.000-04:00Hi Bee,“ Also, I find it annoying too if I am in t...Hi Bee,<BR/><BR/>“ Also, I find it annoying too if I am in the audience, because most of the time I'd rather hear the speaker than the comments of others. “<BR/><BR/><BR/>I understand the feeling. This is most annoying and defocusing when these questions take on more the form of a debate. Of course the solution for this is to announce you will make yourself available for a short time after the Phil Warnellhttps://www.blogger.com/profile/15671311338712852659noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-80212864289056968372008-05-13T01:54:00.000-04:002008-05-13T01:54:00.000-04:00Hi Jason,If I were better at giving talks that mig...Hi Jason,<BR/><BR/>If I were better at giving talks that might be the case. But if I get interrupted several times I tend to forget what I meant to say, and then later it will be missing. Also, I find it annoying too if I am in the audience, because most of the time I'd rather hear the speaker than the comments of others. Best,<BR/><BR/>B.Sabine Hossenfelderhttps://www.blogger.com/profile/06151209308084588985noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-5449273682081029582008-05-12T09:39:00.000-04:002008-05-12T09:39:00.000-04:00As for people asking questions that are answered o...As for people asking questions that are answered on your very next slide, that strikes me as an indication that you're giving a good talk. It means they're both engaged and you've correctly anticipated their questions. Seems better to me to have them ask the question than wait for you to move on to another topic before noticing that the question wasn't answered.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-22973357.post-51072566473341134512008-05-11T14:54:00.000-04:002008-05-11T14:54:00.000-04:00BTW, nice to see rauchen ist verboten in deutschla...BTW, nice to see rauchen ist verboten in deutschland anymore.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-22973357.post-69427008502184732582008-05-11T05:00:00.000-04:002008-05-11T05:00:00.000-04:00Hello,I personally don't understand why they are t...Hello,<BR/><BR/>I personally don't understand why they are trying to derive the nature of time (which should be a universal concept)through SR. SR according to GR has local significance. GR on the other hand according to the principle of covariance is background independent. <BR/><BR/>RegardsAnonymousnoreply@blogger.comtag:blogger.com,1999:blog-22973357.post-55609919075135405872008-05-11T03:53:00.000-04:002008-05-11T03:53:00.000-04:00I learned from the previous post that quite some p...I learned from the previous post that quite some people favour the block universe because they believe the idea of a 'now' being different from the past and the future is in conflict with special relativity. I further learned about Jim Hartle's work on a related topic (that however I still haven't looked up). I do not aim at explaining what 'existence' is, I was trying to understand your questionSabine Hossenfelderhttps://www.blogger.com/profile/06151209308084588985noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-77546032793043016202008-05-10T17:47:00.000-04:002008-05-10T17:47:00.000-04:00I would give you a definitive answer to the two mo...I would give you a definitive answer to the two most studied and researched questions in the history of man, but I won't deprive you of the ultimate satisfaction of finding the answers yourself. I guess I should have asked "have you learned anything as a result of the post and related survey?" Thats all I was going for.Edhttps://www.blogger.com/profile/16562010882893542878noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-40530103448472966012008-05-10T14:57:00.000-04:002008-05-10T14:57:00.000-04:00Gee whiz, sigh. Ed, in the previous post I explici...Gee whiz, sigh. Ed, in the previous post I explicitly stated I'm not going to define 'existence'. Instead, I danced around it asking whether the present has the same properties as the past and the future, and lets refer to these properties as 'existence'. This question works because everybody of us has some conception of the present, and all my question was aiming at was whether the past or Sabine Hossenfelderhttps://www.blogger.com/profile/06151209308084588985noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-72324814520919809132008-05-10T13:36:00.000-04:002008-05-10T13:36:00.000-04:00Golly, gee whiz. You let yourself and everyone wh...Golly, gee whiz. You let yourself and everyone who commented use the word exist without having to define it. How come I do?<BR/>All I was wondering was if you came to any conclusions or had any insights regarding time as a result of either the poll or the comments. I personally think that we would mean exist in the sme sense that physicists do when the include it in calculations.Edhttps://www.blogger.com/profile/16562010882893542878noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-37350379970344370172008-05-10T08:08:00.000-04:002008-05-10T08:08:00.000-04:00Hi Bee,You truly are a person caught between two w...Hi Bee,<BR/><BR/>You truly are a person caught between two worlds. I can’t imagine having ones thoughts, concepts and expression split between two languages. You truly have a view of things I will never understand outside of realizing it possible. I then thank you again for the insight.<BR/><BR/>Best,<BR/><BR/>PhilPhil Warnellhttps://www.blogger.com/profile/15671311338712852659noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-89654204234761759052008-05-10T07:38:00.000-04:002008-05-10T07:38:00.000-04:00Hi Phil,My talk was in English. I simply realized ...Hi Phil,<BR/><BR/>My talk was in English. I simply realized too late I could have talked in German, but it would have been confusing for me anyhow. I've never given a talk about the topic in German (seminars at the ITP in Frankfurt used to be in English because we always had guests who didn't speak German), and each time I try to explain something in German, I fall back into English. The Sabine Hossenfelderhttps://www.blogger.com/profile/06151209308084588985noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-42568386497432954292008-05-10T07:24:00.000-04:002008-05-10T07:24:00.000-04:00Hi Bee,One last observation and that being I notic...Hi Bee,<BR/><BR/>One last observation and that being I noticed that the majority of your presentation you offered as a down load was in English. Was this how it was presented verbally and if so is it a requirement or an option?<BR/><BR/>Best,<BR/><BR/>PhilPhil Warnellhttps://www.blogger.com/profile/15671311338712852659noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-72773167795236422812008-05-10T06:18:00.000-04:002008-05-10T06:18:00.000-04:00Hi Bee,“There was no entry on the right side, it w...Hi Bee,<BR/><BR/>“There was no entry on the right side, it was an outside wall with windows”<BR/><BR/>I knew you could explain the anomaly. So there were windows on the other side; in as I see no one with their head turned to the right and you described it as being a beautiful spring day, then this would have me convinced those attending were taken by your lecture:-)<BR/><BR/>Best,<BR/><BR/>PhilPhil Warnellhttps://www.blogger.com/profile/15671311338712852659noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-2473164687345913912008-05-10T04:55:00.000-04:002008-05-10T04:55:00.000-04:00Yeah, but the question there wasn't whether time e...Yeah, but the question there wasn't whether time exists?Sabine Hossenfelderhttps://www.blogger.com/profile/06151209308084588985noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-51581747327019367022008-05-10T04:50:00.000-04:002008-05-10T04:50:00.000-04:00Bee that's a fair enough question. I was refering ...Bee that's a fair enough question. I was refering to the results of the poll/discussion in your former article "Every now and then"Edhttps://www.blogger.com/profile/16562010882893542878noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-11140232090983809582008-05-10T04:31:00.001-04:002008-05-10T04:31:00.001-04:00Ed: define 'time' define 'exist'.Ed: define 'time' define 'exist'.Sabine Hossenfelderhttps://www.blogger.com/profile/06151209308084588985noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-49912852789675668652008-05-10T04:31:00.000-04:002008-05-10T04:31:00.000-04:00Phil: There was no entry on the right side, it was...Phil: There was no entry on the right side, it was an outside wall with windows.Sabine Hossenfelderhttps://www.blogger.com/profile/06151209308084588985noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-31932071105657926272008-05-09T22:18:00.000-04:002008-05-09T22:18:00.000-04:00I sleep like that on flights too, usually with my ...I sleep like that on flights too, usually with my coat insulating my forehead from plastic. Especially when my seatmates are so inconsiderate to not let me sleep on their shoulder.<BR/><BR/>Regarding quantum gravity...does anyone have a serious expectation of gravitons existing? My understanding is gravitons are what you get if you take a crack at quantizing linearized GR, which should be eric gissehttps://www.blogger.com/profile/10598878490537720448noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-78416968540755697232008-05-09T21:29:00.000-04:002008-05-09T21:29:00.000-04:00Hi Bee,Thanks to you and Stefan for the inside vie...Hi Bee,<BR/><BR/>Thanks to you and Stefan for the inside view of your lecture. The first thing I noticed was the lack of density with regard to those attending. As you pointed out 70 people in this size venue has it look somewhat empty. Now if you had held it in the Bob room at Perimeter it would have been standing room only. This then proves that attendance is likewise relative:-) I also Phil Warnellhttps://www.blogger.com/profile/15671311338712852659noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-40567592850975234222008-05-09T19:23:00.000-04:002008-05-09T19:23:00.000-04:00Time will tell...Time will tell...Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-22973357.post-11780373341389175182008-05-09T17:20:00.000-04:002008-05-09T17:20:00.000-04:00Not to change the subject, but does time really ex...Not to change the subject, but does time really exist or not?Edhttps://www.blogger.com/profile/16562010882893542878noreply@blogger.comtag:blogger.com,1999:blog-22973357.post-4400611858783947562008-05-09T12:46:00.000-04:002008-05-09T12:46:00.000-04:00Having given talks as well as having sung arias/ca...Having given talks as well as having sung arias/cantatas in theaters/churchs -- both scary situations -- I can assure you that the latter is orders and orders of magnitude scarier than the former. You cannot make mistakes when singing, or at least your mistake must be so that nobody notices it. Well, in a talk if you make a (noticeable) mistake you can always acknowledge that later, you cannot doAnonymousnoreply@blogger.com