對於國家的定義，波德爾有一套嚴格的標準，必須符合他認定的3個條件才算：1.在到訪時
是個被國際認可的國家、2.持簽證或合法入境、3.必須在護照上蓋上戳記。
推 abasqoo: 慘了 這樣他來過台灣嗎
推 iamBGdog: 他有來過臺灣嗎
推 netio: 所以他沒到過台灣?
噓 LunLin9590: 被國際認可的國家……………
推 cloud72426: 台灣應該不算XD
聯合國一共有193個正式會員國
他去過196個國家，193外剩下的三個分別是台灣、科索沃、梵蒂岡
國家地理雜誌介紹他其中一段：
Most people will also acknowledge that Taiwan is a country, but unfortunately
it is not a UN member because it’s been blocked by China. Kosovo is also a
country, but again it’s not a UN member, because it’s been blocked by Russia.
Vatican City, despite its small size and population, is a recognized country.
However, the Holy See has decided that it can operate better diplomatically if
it maintains its observer status at the UN, rather than full membership. So
those are the 196.
來源：http://goo.gl/cjK8iV