It’s fairly easy to write off a group like Beach Fossils upon the first impression. While we can’t judge books by their cover, those sleeves are designed to give you the most concise definition of its contents, so there must be some merit. A cursory glance at the group reveals exactly what you need to know about them. These are four dudes from Brooklyn dressed in thrift shop finest and baseball caps. They produce lo-fi, Yo La Tengo inflected indie rock-and-droll with whispery vocals and enough irony to make Malkmus look sincere. They’re another group of stoned hipsters talking about…