@AvaCallanach
What is autism?
Autism is an atypical neurodevelopmental condition in which the brain systems respond differently to sensory stimuli, and have communication differences compared to typically wired brains. This manifests in differences that can be observed during development in social interaction and communication skills, and in the ability to respond flexibly to situations or information.
In part this is because of the different experiences of the sensory world, which can appear too bright/ too busy/ too noisy in the way it is set up for the neurotypical majority, especially in the modern world of electric lights, cars etc. On the other hand that sensory world can bring immense joy to many autistic people for example in exploring textures, smells etc in a way that passes most neurotypical people by (and is pathologised - eg saying an autistic child shouldn't sniff items or run their fingers gently over and through textures).
In part this is because of the communication differences which mean that navigating the social world is hard. For example neurotypical people "parse" language a lot; they are very imprecise or inaccurate and don't even notice; this can cause bewilderment. For example telling a class of 5 year olds to write about "what they are going to do at Christmas". Strictly speaking, until they have done it, none of them knows what they are going to do at Christmas. They can probably predict with some degree of confidence based on past experience, conversations they have had etc. But this is the kind of parsing of language that can cause confusion to an autistic child because they can't answer that question. They could answer if they were given an accurate task such as "write about some things you think you might do this Christmas". This is a disablement caused to a certain extent by the vagaries of neurotypical language use which NT people use in a more flexible, less accurate way.
So autism is indeed about being wired differently. The only common features are differences in communication and interaction, and difficulties with flexibility of thought in comparison with NT people. Evidence of areas of deep focus - and consequent fascination and knowledge - is also usual (again pathologised and often described as 'obsessional interests').
Thanks Ava/Susanna for this accurate, neutral and (obviously!) informed post. Part of the frustration I feel about the 'autism activism' movement of the last few years is the lack of clarity about autism. And yes, I very much see that the current autism activism trend echoes much of the self ID/TRA movement. It's all down to identity politics, but I very much reject the idea that you can be autistic 'if you feel you are' via self-diagnosis. [anger]
This should not diminish the experience of adults who want to investigate their own possible autism and find it difficult, impossible or just plain expensive to get an assessment. But like many many parents of children who have autism, I'm concerned that all the self-diagnosed adults proclaiming their autism are making the very diagnosis increasingly meaningless. It helps no-one.
My son is classically and frankly autistic. He's largely non-verbal, he has significant learning difficulties, a whole raft of complex sensory issues that make negotiating everyday life hard for him and for the whole family, and he will never, ever be able to manage on his own. We will die knowing that he will be reliant on the kindness and care of people who aren't related to him and can't ever love him as we do. So forgive me if I'm angry about the new activism that comes from highly articulate adults who - by anyone's standards - are doing 'ok'. They have jobs, relationships, children. I'm certainly not saying that people who present like this can't be on the autistic spectrum, but they do not speak for my son. And sadly, I've found that this new autism activism isn't generally at all interested in individuals like my son.