Sapiens: A Brief History of Humankind

DKKI, [15.03.17 11:36]
[In reply to Khinchin]
你地成日講呢本 原來我係coursera睇左 係個作者開course

Khinchin, [15.03.17 11:37]
[In reply to DKKI]
一早喺 youtube 睇過…. Coursera 那個course 好似摺咗….

DKKI, [15.03.17 11:37]
佢講mankind future果part我覺得有d求其, 係科幻小說setting咁

DKKI, [15.03.17 11:37]
好耐之前睇了

Khinchin, [15.03.17 11:37]
[In reply to DKKI]
根本去到亂吹水平….

DKKI, [15.03.17 11:38]
最深刻佢話現時人類dna入面有唔少其他人種parts…. 媽呀好亂
幾萬年前雜交party

DKKI, [15.03.17 11:39]
[In reply to Khinchin]
Marvel水平…..

DKKI, [15.03.17 11:41]
btw 講起個course 有冇d寵物權益果類書推薦

MWWM, [15.03.17 11:42]
[In reply to DKKI]
同感,好似而家評論下屆美國總統大選形勢咁,連個日子都未知⋯⋯講乜都得架

Khinchin, [15.03.17 11:47]
[In reply to MWWM]
真心講,我覺得好多人都好似好喜愛文史哲,但對科學那邊唔夠著重,好多時好多嘢都只係低級水平嘅嘢都好似大發現咁…..

DKKI, [15.03.17 11:48]
另外佢講家畜果part都好精彩, 講nos of dna copy係win晒, 但個quality of life係most miserable of all time
對理解進化呢件事好inspiring
unit of evolution is dna, not species

Khinchin, [15.03.17 11:58]
[In reply to DKKI]
但你有無想過佢係有問題呢?

佢所講本身係有好多原因達至同一結果, 但根據進化論及 survivorship bias 以及現代genetics 嘅調查, 唔係同一時間雜交party, 而係有不同時間慢慢累進不同dna

Khinchin, [15.03.17 12:01]
好似地中海貧血症,係地中海地區嘅人慢慢佔多數, 係同環璄互動而出現, 唔係突然同一時間全部其他人種dna 死晒…..

Khinchin, [15.03.17 12:03]
而 DNA 好似樹嘅年輪咁, 係可以睇到時間環境嘅變化…..

Oic, [15.03.17 12:03]
邊有純種人😂

DKKI, [15.03.17 12:03]
[In reply to Khinchin]
我學識未去到question佢果個level
但個study係show到一個事實,就係係非人為(因為唔係個別事件)情況下,唔同物種有雜交情況

好shocking😓

Khinchin, [15.03.17 12:04]
[In reply to Oic]
最純係中非洲某地方人, 都係跟DNA 調查出來….

DKKI, [15.03.17 12:04]
[In reply to Oic]
講緊唔係東方人同西方人果個層面
係人同猩猩….

Oic, [15.03.17 12:05]
其實喺猿人時代都係啦😂

DKKI, [15.03.17 12:06]
[In reply to DKKI]
呢個係生物學finding
至於社會/人文學果方面 留返俾其他人去諗

Khinchin, [15.03.17 12:08]
[In reply to DKKI]
佢係有心將歷史, 生物學, 人類學嘅嘢合埋一齊去講, 但歷史空白部份就有啲似是而非咁猜想及誇張講出來, 但又故意忽略某些關於DNA 有時間變化這個特點….

DKKI, [15.03.17 12:13]
[In reply to Khinchin]
👍🏻 明你意思
我都唔多理佢d opinion, 淨係聽佢d finding
history of mankind個題目太大,唔會淨係聽一家之言

Khinchin, [15.03.17 12:19]
[In reply to DKKI]
但就係好多人都無Science 嘅應有觀念, 變咗好易只吸咗一些唔係咁正確嘅Science 情況…..

所以都係嗰句, 大家都係只睇文史哲, 但就唔知現在文史哲好多時都用咗(偽)科學知識去寫 而又走去信, 結果真係災難….

DKKI, [15.03.17 12:23]
[In reply to Khinchin]
呢個係另一個問題
就咁睇好似文科人鍾意睇書d (雖然多數文史哲類)
理工科d書唔會係谷拎出黎講
好似呢本history of mankind 個方向似係俾social science人睇🤔

Josh, [15.03.17 12:51]
[In reply to Khinchin]
我唔明同本書個衝突位係邊🙈
佢好似冇提到係突然事件既基因篩選喎?
同埋可唔可以講多少少dna 有時間變化即係點

Khinchin, [15.03.17 13:00]
[In reply to Josh]
Harari 真係有少少誤導, 例如講馬, 驢, 馬有64條chromosomes, 驢就有62條chromosomes. 當然明顯兩個物種, chromosomes 數目都唔同..

至於兩者互合, 有 mule 及hinny (當然Harari 又無講到), 都有 63條chromosomes. 而佢講 mule 係sterile , 根本係錯, 有好多好多文獻都話male mule 同純種馬或驢可以生到下一代….

反而hinny 就多數係sterile, 但中國又好勁咁搞到 hinny mare 同 donkey 生到下一代….

唔知大家明唔明呢? 基因唔係咁簡單, 還有顯性, 隱性好多嘢…..

正常人有46條chromosomes, 而裡面皆由DNA 用double helix 砌成, (你會問點解double helix, 就係怕一條壞咗亂咗, 當確認到就會有mechanism 去剪去錯咗那一part 再會重新配對; 但兩條都錯就會變cancer…..)

Khinchin, [15.03.17 13:07]
或者都要講一講, chromosomes 古代人係無咁長, 現代人係比古代人長咗(當然係好少好少), 就係因為每一代交配都會留下有些記認….

Khinchin, [15.03.17 13:14]
至於species, 真係會有合併及變化, 每隔幾年會改, 好似甴曱 (cockroach) 近幾年都同白蟻 (termite) 合併咗一同一目, 唔通兩者係有mating 才合併嗎?

好多時都係睇DNA 組合嘅藍圖及習性有幾多相似而決定

Lok Yin Chan, [15.03.17 13:18]
Sapiens 咁多人推,都竟然有錯?我仲多左未睇🙈

Lok Yin Chan, [15.03.17 13:18]
總括黎講值唔值得睇?

Khinchin, [15.03.17 13:19]
[In reply to Lok Yin Chan]
整體當歷史書無錯, 大家都值得去睇…..

Lok Yin Chan, [15.03.17 13:20]
[In reply to Khinchin]
即係唔好當science黎睇?

Khinchin, [15.03.17 13:21]
[In reply to Lok Yin Chan]
你當一個歷史學者寫嘅 popular social science 書係science 書, 係未搵錯authority 呢?

Lok Yin Chan, [15.03.17 13:21]
[In reply to Khinchin]
寫得以為啱⋯

King Y, [15.03.17 13:22]
[In reply to Lok Yin Chan]
好多專家都會出聲講啲唔係佢專業嘅野

King Y, [15.03.17 13:22]
但大家就會當係專業意見咁聽

King Y, [15.03.17 13:22]
😂😂

Lok Yin Chan, [15.03.17 13:23]
「專家」話啱咪啱囉😹😹

Lok Yin Chan, [15.03.17 13:25]
講開DNA, 有本the gene: an intimate history, 先前連登有人推,我都有興趣,呢本又值唔值得睇?

Josh, [15.03.17 13:25]
[In reply to Khinchin]
的確佢係冇直接用chromosome 黎區分物種,而用左produce fertile offspring 既定義
但呢個都係平時理科生會用到既簡單定義,唔算誤導掛(?)
同埋我印象中male mule 係全sterile, 而female mule 都只係講緊個別case (類似全球得幾十單咁)
recessive 同dominant 唔多覺apply 到落呢啲case 到(?)

我認同佢唔係science 書,定義唔夠嚴謹,但好難咁樣就當佢錯

Advertisements

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s