So Martin Weller tells us that "A mudlark is someone who scavenges in river mud for items of value." Or, in other words, he says, an education technology reseracher. "One of the elements about ed tech that makes the idea of a discipline an ill fit is that it does not have the foundations of other disciplines. People come into it from different fields, what it actually is may not be clearly defined, and there is no shared sense of history." Well, maybe, but from where I sit there is a foundation and a history, one well established in philosophy and science and technology. But because education as a discipline has always set itself apart, it is not able to tap into this shared history, and what appears to us to be core elements of a science of knowledge, appears to them as mere flostam.