互聯網的發展迅猛，鑒于不同區域網速各不相同，等待加載其實還是時常發生的。在設計心理學中我們知道一個網頁加載的快慢會直接影響瀏覽者的心情，也就是說加載的過慢網站即便設計的再完美都不會受到歡迎。所以為了降低這樣的流失比例，通常會在網頁加載前預加載一個過渡效果。有進度的等待會讓人在心里上不去刻意排斥。

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