Thanks for the quick reply.
1) First of all we're not building a marketplace ourselves, in fact we'll just offer inventory which comes directly from the supplier to anyone. So people can book directly through the blockchain or marketplaces can be built around winding tree which source inventory from the platform. We have been working on the on-boarding of partners - and Lufthansa was the first partnership we've been able to announce officially. There's a lot of interest on the supplier side - it's more the legal hassle that slows us down.
Point taken, although suppliers are not going to be incentivized to push their inventory in to a black hole. You will have to stimulate some adoption on the other side too. Lufthansa is a great partner but I'd argue they're also one of the easier ones to launch with. They have the budget and in house tech knowledge to experiment with this and they're at the vanguard of trying to push back on the level of control incumbent distributors have over the industry.
2) Correct - so with the suppliers we've talked to the aim is to initially push inventory to the blockchain live and in the long-term integrate winding tree at the source i.e. the Property Management System. That's another reason why we've been pushing to working with suppliers as we can work together with them to find ideal solutions for making integration as seamless as possible. Overall cost of integration is a fixed cost, distribution is a variable cost which occurs at every booking. If you consider the commission rates suppliers are paying it should be a very profitable investment.
Agree with this although the elephant in the room is that most suppliers don't have the cash flow (or bank credit) to invest in up front capex/fixed costs. It's much easier for them to bleed some profit via commissions as sales are generated rather than swallow a big integration cost (and the associated time and disruption that implies) before seeing returns.
3) For travel bookings you don't necessarily need instant verification. In fact it's very likely you'll be booking something that's a couple of days out or even months. But in the general scheme of things we are looking closely at all scaling projects and already talking to some to see what the best path for us could be on scalability.
There will be an almost immediate need to guarantee double bookings don't take place though (beyond whatever threshold an airline or hotel usually tries to aim for)? Also, things like booking alterations, cancellations, refunds etc.?
4) NDC has been tried, everyone just integrated their own version of NDC. I think we need a radical change in distribution, and to enable everyone to get access to inventory and resell it blockchain is the ideal solution. We also believe in the benefits of decentralized networks.
There are small implementation quirks and differences but these are not huge (nothing an overlay library doesn't easily solve) and are projected to reduce over time as the industry agrees on best practices.