In the vast digital expanse of the Internet, myriad online weight loss programs are vying for your attention, each claiming to be the panacea for all your weight-related woes. The multiplicity of these programs, while offering a plethora of options, can also make the task of choosing the right one a daunting endeavor. To navigate this maze efficiently and effectively, it is imperative to ask certain pertinent questions to the online weight loss program provider.

The first question to raise pertains to the scientific basis of the program. The laws of thermodynamics, particularly the first law which elucidates the principle of energy conservation, forms a cornerstone of any weight loss regimen. Body weight is fundamentally governed by energy balance, with weight gain ensuing from excess energy intake over expenditure, and vice versa. Hence, a reputable weight loss program should be rooted in the principles of energy balance. If a program purports to defy these laws, it's veracity should be questioned.

Further, delve into the program’s behavioral change strategies. The science of behavioral economics, particularly the "nudge theory" conceptualized by Nobel laureate Richard Thaler, has profound relevance in weight loss. The theory posits incremental changes in the environment as potent influencers of behavior. Therefore, a superior program would employ strategies such as portion control reminders, prompts for physical activity, and tools for self-monitoring – all embodying the nudge concept. Asking for specifics on these strategies can reveal a lot about the program's approach towards sustainable weight loss.

Next, it is important to query about the program's use of technology. In an era characterized by rapid advancements in technology, it is only fitting that an effective weight loss program leverages these developments. Machine learning and artificial intelligence (AI) offer predictive modelling, which can identify trends and suggest personalized remedial measures for weight loss based on past patterns of behavior and weight fluctuations. Furthermore, blockchain technology may be employed to secure your personal data and ensure transparency. Any program which hesitates to divulge details of their technological backing or seems dismissive of this aspect might not be updated with the most cutting-edge tools in weight loss.

Another question to pose is about the program's customization. Every individual is unique in terms of genetic predisposition, metabolism, lifestyle, and preferences. As elucidated by the Pareto principle, also known as the 80/20 rule, 80% of the effects come from 20% of the causes. In the context of weight loss, this implies that the majority of weight loss benefits can be accrued from a customized set of strategies tailored to an individual’s unique profile. Thus, the program you choose should offer a high degree of personalization, addressing your unique needs and preferences.

Last but not least, inquire about the program's long-term sustainability. Weight loss is a journey, and the ultimate goal is not just to reach your destination but to stay there. The theory of hedonic adaptation, which proposes our tendency to return to a relatively stable level of happiness despite major positive or negative events or life changes, plays a significant role here. If a weight loss program is too restrictive or difficult to follow, the likelihood of reverting to old habits increases. Therefore, understanding how the program plans to ensure long-term adherence and sustainability is crucial.

In conclusion, the process of selecting the right online weight loss program can be significantly simplified by asking these pointed questions. Utilizing principles from thermodynamics, behavioral economics, technology, and psychology enables a more informed decision and can lead to a more successful, sustainable weight loss journey.