他在城市进化论“<a href="https://weibo.cn/sinaurl?u=http%3A%2F%2Fmp.weixin.qq.com%2Fs%3F__biz%3DMzg2MjA5Mjc0OA%3D%3D%26amp%3Bmid%3D2247548191%26amp%3Bidx%3D1%26amp%3Bsn%3D19e900213aa1b4eaf4dfa858d493040b%26amp%3Bchksm%3Dce0f51bcf978d8aad3d7b889a1862d792d1e2e97ac2bc47267f76b26d4e4c20fd6fa6f242f54%26amp%3Bscene%3D21%23wechat_redirect" target="_blank"><em>大家的城市公开课</em></a>”第二期上提到，“我觉得我们不需要让一个城市去抵御10万年一遇的洪水、暴雨、干旱，也不需要修到应对万年一遇的程度，能应对百年一遇就可以了。”

dierdainongmingongzhongyoudalianglinghuojiuyezhe，tebieshipingtaijiuyezhe。rangpingtaijiuyezhejiaruchengzhibaocunzaihenduonandian：yifangmianshichengzhibaoxuyaoguzhujiaonadangdipingjungongzide16%，erpingtaijiuyezhedeguzhuhennanqueding；lingyifangmian，pingtaijiuyezhegerenyaojiaonadangdipingjungongzide8%，pingtaijiuyezheshourubuwending，buyuanyijiaona。bingqie，daduoshupingtaijiuyezheyijingcanjialechengjubao，zhidushangbuyunxugerenzhongfucanbao，tamenhainianqing，yebuyuanyizaiyanglaojinfangmianzuogengduodetouru。第(di)二(er)代(dai)农(nong)民(min)工(gong)中(zhong)有(you)大(da)量(liang)灵(ling)活(huo)就(jiu)业(ye)者(zhe)，(，)特(te)别(bie)是(shi)平(ping)台(tai)就(jiu)业(ye)者(zhe)。(。)让(rang)平(ping)台(tai)就(jiu)业(ye)者(zhe)加(jia)入(ru)城(cheng)职(zhi)保(bao)存(cun)在(zai)很(hen)多(duo)难(nan)点(dian)：(：)一(yi)方(fang)面(mian)是(shi)城(cheng)职(zhi)保(bao)需(xu)要(yao)雇(gu)主(zhu)缴(jiao)纳(na)当(dang)地(di)平(ping)均(jun)工(gong)资(zi)的(de)1(1)6(6)%(%)，(，)而(er)平(ping)台(tai)就(jiu)业(ye)者(zhe)的(de)雇(gu)主(zhu)很(hen)难(nan)确(que)定(ding)；(；)另(ling)一(yi)方(fang)面(mian)，(，)平(ping)台(tai)就(jiu)业(ye)者(zhe)个(ge)人(ren)要(yao)缴(jiao)纳(na)当(dang)地(di)平(ping)均(jun)工(gong)资(zi)的(de)8(8)%(%)，(，)平(ping)台(tai)就(jiu)业(ye)者(zhe)收(shou)入(ru)不(bu)稳(wen)定(ding)，(，)不(bu)愿(yuan)意(yi)缴(jiao)纳(na)。(。)并(bing)且(qie)，(，)大(da)多(duo)数(shu)平(ping)台(tai)就(jiu)业(ye)者(zhe)已(yi)经(jing)参(can)加(jia)了(le)城(cheng)居(ju)保(bao)，(，)制(zhi)度(du)上(shang)不(bu)允(yun)许(xu)个(ge)人(ren)重(zhong)复(fu)参(can)保(bao)，(，)他(ta)们(men)还(hai)年(nian)轻(qing)，(，)也(ye)不(bu)愿(yuan)意(yi)在(zai)养(yang)老(lao)金(jin)方(fang)面(mian)做(zuo)更(geng)多(duo)的(de)投(tou)入(ru)。(。)