What is dimensionality reduction attack?

I met an aunt on Douyin. We have been chatting for half a year and have been chatting very well. Suddenly, she asked to meet. I hesitated and said that I was a cryptocurrency trader. She said she didn't mind and just wanted to be ordinary friends. So I agreed and asked for her photo. She was an ordinary person and didn't look annoying. She was not far from my city. We agreed to meet at a milk tea shop instead of a shopping mall for fear of meeting familiar people.

I arrived first, because she had to drive for several hours. When I was waiting, I looked at the photos and thought it would be a "car accident scene" because mobile phones have beauty functions. But when she walked out of the Mercedes-Benz, I recognized her at a glance. She was much more beautiful in person than on the phone, and she was also the type I particularly admired. She also recognized me. I didn't know what to say and just stood there. In order to break the awkwardness, she suggested a hug. I said yes, but she touched my head politely and called my name. My face turned red and my heart was pounding. After sitting in the milk tea shop for a while, we went to eat. She didn't eat much. During the whole process, she was peeling shrimps and picking fish bones for me. When we walked out of the restaurant after dinner, she took my hand and I didn't break away. She said she would take me back because she was afraid that it would be bad if I was out for too long. I said I could take a taxi back by myself. She insisted on taking me to Changzhou, Jiangsu. Changzhou is located in the central part of Jiangsu Province, in the lower reaches of the Yangtze River, bordering the Yangtze River to the north, Zhejiang to the south, Shanghai to the east, and Anhui to the west.

Changzhou has a long history and is one of the famous historical and cultural cities in China. The city has a superior geographical location, convenient transportation, and rapid economic development. The city and its surrounding areas are rich in natural resources and cultural heritage, including Tianning Temple, China Dinosaur Park, Changzhou Museum and other places of interest. In addition, Changzhou's specialties include Changzhou combs and Changzhou snacks. Changzhou City has 4 districts, 4 counties and 1 county-level city under its jurisdiction, with a total land area of ​​about 4,400 square kilometers and a population of over 5 million.